- General Terms and Conditions. - Transport Conditions Conduct guidelines in the event of transport damage

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1 - General Terms and Conditions - Installation Conditions for sending our service and installation personnel - Appendix: Installation prices - Transport Conditions Conduct guidelines in the event of transport damage HANSA Ventilatoren- und Maschinenbau Neumann GmbH Saterland/Strücklingen P.O. Box Telephone (+49) 44 98/89-0 Fax (+49) 44 98/ info@hansa-klima.de

2 General Terms and Conditions 1. General information (1) Scope of validity These Conditions apply to our offers and order confirmations and for all performances to be provided by us. In terms of these Conditions, the purchaser is also the principal. Supplementary installation conditions apply to tasks requiring dispatch of our installation personnel, supplementary transport conditions and conduct guidelines apply to shipments. (2) Exclusivity These Conditions apply exclusively. Conflicting or differing conditions of the purchaser will not become part of the contract and they will not replace our Conditions. This will also apply if despite awareness of such conditions of the purchaser, we do not object to these conditions and carry out our performance without reservation, unless an individual agreement deviating from these Conditions has been concluded in writing. The applicability of German law is also agreed with foreign purchasers. (3) Future agreements for foreign business Our Terms and Conditions apply to all future business with the purchaser. The comprehensive applicability of German law is agreed with foreign purchasers to the exclusion of the UN-Convention on Contracts for the International Sale of Goods. (4) Non-transferability, continued application Rights arising from the contractual relationship may only be transferred to third parties with our prior written consent; we are not obliged to accept any unauthorized transfer of rights. The purchaser assures us that these Conditions take unrestricted effect in legal communication with his own contractual partners and other third parties. 2. Offer and placing of orders (1) Meaning, written form Offers are non-binding. The type and scope of our obligation to perform are determined solely according to these Conditions and our written order confirmation; the type and scope of our obligations regulate exclusively; any performances not contained therein are calculated separately. Arrangements regarding deviations from these Conditions or from the offer or order confirmation, and ancillary arrangements, only take effect with our written confirmation. (2) Irrevocability Orders are irrevocable once they have been placed. In the event of cancellation upon request or fault of the purchaser, we are entitled to demand a fixed compensation for damages in the amount of 25 % of the value of our invoice without further proof. We retain the right to prove higher damages while the purchaser retains the right to prove a lower. (3) Technical data, right of modification Technical data and specifications, drawings, illustrations and descriptions are only approximate; we retain the right to deviations. Falling below or exceeding numerical specifications by about 15 % is usual and will be tolerated by the purchaser as stipulated by the contract. We are also entitled to modify construction, equipment and type of execution vis-à-vis the order confirmation if, at our discretion, doing so appears technically or economically expedient. We make every effort to notify the purchaser of substantial modifications in advance. Deviations and their effects on price and duration of performance are deemed approved by the purchaser unless he submits a written objection to us in writing within 14 days of the date he is notified of the modification. If objection is raised in due time, the content of the order confirmation remains in force; we are then granted the right to an appropriate extension of the execution period. (4) Documents, test pieces and samples We retain all copyright and property rights to calculation, plan, construction and other documents which the purchaser receives from us with the offer or otherwise in the course of the business relationship and which represent our proprietary, intellectual property. These documents are only intended for the personal use of the purchaser and must not be made accessible to third parties. Test and sample pieces, as well as test work, only furnish an approximate starting point for the characteristics of our respective performance; as stated in Paragraph (3), we retain the right to any modifications. The test and sample pieces remain our property. If our copyright is infringed, we are entitled to damage claims in the amount of planning costs taking into account saved expenditures; we retain the right to prove additional damage claims. 3. Prices (1) Basic policy Prices are understood to be net plus value added tax in the applicable statutory amount, duties unpaid, without freight and insurance and without hardship surcharges. Packaging is additionally calculated at cost and will not be taken back. (3) Period of validity, cost per day Our prices always apply solely to the respective order. We are entitled to adjust our prices as appropriate to an interim increase in our costs without prior notice even after confirmation of the order for deliveries and performances for four months after conclusion of the contract (cost per day). 4. Payment conditions (1) Method of payment, due date, discount Unless otherwise agreed, payments will be made in cash or by bank transfer free of transaction charges to Hansa Saterland within 10 days of the invoice date with a 2 % discount or within 30 days with no deduction. Discounts are granted from the net invoice final amount (value of goods) after deduction of all sub-entries and presume the purchaser has fulfilled all our claims arising from the business relationship. If we specify more than one starting date as the basis for determining the payment term, the date entitling us to the earliest possible enforcement of our claim for payment applies. No representatives are authorized to collect payment; anything else only applies in individual cases and with the express written power of attorney to collect. (2) Offsetting and retention The purchaser is only entitled to rights of retention if his counterclaims have been legally determined, are uncontested or have been recognized by us. The same applies to exercise of a right of retention. (3) Means of payment Checks, bills of exchange and any other means of payment are only accepted upon agreement and only subject to the proviso that money is received. All costs accruing through collection of the means of payment are borne by the purchaser. Payment by bill of exchange excludes deduction of discounts. (4) Timeliness of payment and default Payment is deemed rendered on the day we receive the credit balance, if and insofar as it is proven to be final. If the purchaser exceeds a payment period on the date specified in these Conditions or otherwise agreed upon, he is in default without a reminder. (5) Consequences of default Upon the onset of default, all of our claims arising from the business relationship become due immediately even if their applicable payment periods have not yet been exceeded; at the same time, any claims to discounts, credits, rebates, etc., are voided. In case of partial deliveries, if default occurs we are entitled to withhold our remaining performance until all our claims have been remunerated in full or to wholly or partially conclusively refuse further performance. Upon the onset of default, a default interest not less than 8 % above the respective German Federal Bank discount rate accrues to us without proof; we retain the right to impose additional verified default damages. (6) Lack of purchaser creditworthiness If after the contract is concluded it becomes apparent that the purchaser s circumstances do not or no longer justify issuance of credit or the granting of payment periods, or if judicial or extra-judicial insolvency proceedings affecting his assets are pending, he is subject to the consequences of default as stated in Paragraph (5) above. We are also entitled to demand immediate prepayment or the provision of adequate securities against all our claims or to refuse further performance until payment in full or the provision of securities or to rescind the contract or to demand non-fulfillment damage compensation, and without proof, to a fixed sum of no less than 25 % of the entire invoice amount. We retain the right to prove a higher amount of damage while the purchaser retains the right to prove a lower. 5. Place of fulfillment, shipment, transfer of risks (1) Place of fulfillment The place of fulfillment is Saterland-Strücklingen. (2) Shipment at the purchaser s risk Shipment always takes place at the purchaser s cost and own risk within the meaning of Section 447 of the German Civil Code (BGB), even when freight-free delivery has been agreed upon. Insurance policies will only be concluded at the request of and at cost to the purchaser. (3) Types of shipment For all types of shipment, the purchaser is obligated to observe the customary regulations applicable to the specific type of shipment. Deliveries by truck end at the paved road before the boundary of the construction site. Free domicile or free construction site deliveries constitute normal freights which are transported as additional or partial cargo without acceptance of warranty for delivery deadlines. If express freight or direct shipment are desired, we offer to specify a delivery deadline upon request; all related agreements must be in written form to take effect. (2) Supplementary performances Additional performances required due to reasons outside our control are invoiced separately on the basis of our current company rates. We are entitled (but not obligated) to render such performances even without express agreement and without notification if in our discretion they are necessary to fulfill the contract.

3 (4) Transfer of risks Risks are transferred to the purchaser as soon as the goods are handed over to the forwarding company or other persons specified for shipment or are made available to the purchaser by notification of readiness for shipment or pickup, but no later than when the goods leave our factory or our warehouse. If shipment or pickup are delayed for causes not attributable to us, risks are correspondingly transferred earlier. For works performances, risks are transferred to the purchaser on acceptance; if the acceptance is delayed for causes not attributable to us, after notification of readiness for transfer (cf. Section 7, Paragraph (2)). (5) Defects or damages resulting from transport All discrepancies concerning the shipment are to be reported to us in writing after the goods are received immediately and in accordance with our transport conditions as enclosed with each delivery. A special inspection or acceptance presumes an express agreement for both parties. The purchaser bears any costs accruing therefrom. (6) Packaging, unloading All required packaging is invoiced at cost and will not be taken back; proper disposal of this material is the purchaser s concern. The purchaser undertakes unloading of the entire delivery and transfer to the utilization site at his own risk and costs. Unloading must take place without delay; we are entitled to invoice these delays separately. 6. Delivery; delivery and performance periods (1) Partial delivery and performance We are entitled to make and invoice partial deliveries or performances at our own discretion and without prior agreement, insofar as a factual reason for doing so exists and expediency requires. (2) Binding nature of execution deadlines Unless we have expressly guaranteed specific deadlines in writing, delivery and performance deadlines stated by us are only approximate and are non-binding. (3) Prerequisites for deadline compliance Compliance with any and all delivery obligations presumes the prompt and proper fulfillment of the purchaser s contractual obligations, particularly his payment obligations. (4) Force majeure and other hindrances Force majeure and unforeseen events entitle us to rescind the contract or to extend the execution period. This also applies if execution of the contract objectively or subjectively proves to be impossible after such an event occurs; we will inform the purchaser immediately upon having understood the consequences of said event. The purchaser is only entitled to claims made due to non-fulfillment if this impossibility is attributable to our willful or gross negligence. Instances of force majeure (such as war, natural catastrophes etc.) are equated to strikes, lockouts, all types of obstacles to transport, official measures, operational interruptions, supply difficulties and other hindrances. If the circumstances delaying or preventing execution are attributable to one of our suppliers or subcontractors, we assign all claims against the pertinent contractual partner to the purchaser; the purchaser accepts this assignment and therefore indemnifies us of all claims arising thereby. We are also not liable for force majeure or equivalent circumstances occurring during a preexisting delay. 7. Transfer, acceptance (1) Inspection and defect reporting The purchaser is obligated to inspect goods we deliver and performances we render for completeness and for recognizable or apparent defects competently and without delay. Any deviation from the contractually stipulated features must be reported to us in writing no later than 7 days after transfer of risks; where applicable, in accordance with our transport conditions. Concealed defects not recognized immediately despite competent and prompt inspection are to be reported to us without delay as soon as they become apparent. The written defect report must contain a concrete description of the items of complaint. If the obligation to inspect and report defects is neglected, our performance is deemed to have been accepted by the purchaser. (2) Obligation to accept, expedited acceptance The purchaser is obligated to accept the performance as soon as he has been notified the goods are read for delivery or the work has ended. Notwithstanding any other arrangements, the purchaser must exert every effort to expedite the earliest possible acceptance; if payment only upon acceptance by the principal or customer of the purchaser has been agreed, he must enforce a partial acceptance pertaining to our performance by his principal or customer at his own cost and without delay. If these obligations to cooperate are infringed, the acceptance is deemed to have been executed by the purchaser no later than 6 weeks after transfer to him or notification of readiness for transfer. The acceptance is to be carried out without delay, even taking into account any agreed acceptance inspections. If the purchaser does not carry out the acceptance within 14 days after notification of readiness for transfer, the acceptance is deemed to have been executed without reservation insofar as he has been informed of the implied acceptance. Any experts we specify are permitted to take part in the acceptance inspections, which are to be recorded in a protocol. (3) Refusal to accept, returned goods Slight deficits or shortages within normal commercial limits do not entitle the purchaser to refuse acceptance. If acceptance is nonetheless refused, the purchaser bears all costs and consequences arising therefrom. We only accept returned goods after written authorization, otherwise we are entitled to refuse acceptance and to return the goods at the risk and costs of the purchaser. Costs accruing to us due to handling and processing the returned goods are borne by the purchaser. (4) Consequences of refusal to accept If the purchaser is deemed to be in default of acceptance of a delivery of goods, after notification following an appropriate deadline we are entitled to sell the goods on the open market for the purchaser s account subject to our claims at a price we determine to be acceptable without being bound to Section 373 of the German Commercial Code (HGB); our claims for compensation of any additional lost profits and for remuneration of the costs of the sale remain unaffected. (5) Effects of the acceptance The acceptance discharges our liability for recognizable defects insofar as the purchaser has not reserved the right to assert claims for a specific defect in writing. This applies to silent acceptance as well and also if successors to the company are bound to our performances or parts thereof. 8. Retention of title (1) Basic policy, retention period All items we deliver originating in works or service performances of materials, equipment and tools installed or furnished by us remain our property until the agreed price for the respective contract and all other existing and future claims arising from the business relationship with the purchaser have been paid in full (conditional goods, collateral). Until all our claims against the purchaser are fulfilled, he must neither pledge nor transfer by way of security the conditional goods. The purchaser is only entitled to disposition over the collateral and claims and the rights he has acquired and will acquire by utilization of our performances or are otherwise incurred with respect to the conditional commodity to the extent granted by these Conditions. (2) Assignment The purchaser already assigns all claims arising from the sale, processing, installation or other utilization of the conditional goods vis-á-vis his principal or other third parties or that arise in the future to us now in the amount of the final value of his invoices (including valueadded tax), and particularly when the conditional goods are resold now or in the future only after handling or processing. We accept this assignment and therewith become creditors of these claims and all associated rights without need of further clarification. If the purchaser receives checks or other means of payment arising from legal claims affecting the conditional goods either directly or indirectly, it is agreed that we will thereby be granted ownership of the checks, etc.; these are deemed to have been assigned to us and will be held in retention until delivered to us by the purchaser. The purchaser will always assign the most valuable share of the claims he has acquired to us, along with all ancillary rights. These also include the rights vis-à-vis third parties through connection of the conditional goods to a plot of land, including but not limited to the right to demand a mortgage as collateral in accordance with Section 648 of the German Civil Code (BGB). (3) Obligation to due diligence and insurance The purchaser is obligated to handle the conditional goods with due diligence and to mark them as retained in our ownership. During the period of retained ownership, the purchaser must insure the conditional goods against fire and water damage or thievery in an amount adequate to cover their original value at his own cost. We entitled to receive information in this regard; insurance certificates and documents are to be handed over to us upon demand. The ownership retention provisions of these Conditions are to be incorporated into the insurance contract. The purchaser assigns damage compensations from the insurance to us. (4) Processing and transformation The purchaser takes the conditional goods into safekeeping for us with the diligence customary for normal business transactions. He undertakes any form of processing, attachment, mixture or other transformation of the conditional goods on our behalf. We are granted ownership of the new item arising therefrom to the greatest legally possible extent without need of further clarification. The newly created item constitutes conditional goods. If the original conditional goods are processed together with other items not belonging to us, we acquire co-ownership of the new item in relation to the value of our item to the other items at the time of the processing to the greatest legally possible extent. The same applies in the event of mixture, yet with the provision that our item is considered to be the primary item. Regardless of the manner of processing or transformation, the purchaser is excluded from acquiring ownership of the new conditional goods. If the justification of sole or proportional coownership of the new item is prohibited to us by legal restrictions, the purchaser must undertake all efforts to facilitate our acquisition of ownership. If rights to the property are lost due to attachment, mixture or processing in the meaning of Sections 946 to 950 of the German Civil Code (BGB), the purchaser is liable in accordance with Section 951 (BGB).

4 (5) Third-party payments to the purchaser Partial payments which the purchaser receives on demand and that arise in accordance with these agreements cannot be asserted to our detriment. (6) Seizure of the collateral goods by third parties If any type of the collateral goods or claims assigned to us are seized by a third party, the purchaser is obligated to notify us immediately and to present all required documents. Otherwise he is liable for failure to do so. Any costs we accrue through interventions are borne by the purchaser. (7) Enforcement of property retention If the purchaser acts in a way contrary to the contract, especially in the event of payment default, or in the cases described in Section 4, Paragraph (6) of these Conditions (lack of creditworthiness) we are entitled, but not obligated, to reclaim the conditional goods after notification following an appropriate deadline. Such reclamation does not constitute rescission of the contract, unless we have explicitly declared so in writing. We are entitled to freely sell the reclaimed goods on the open market and apply the proceeds arising therefrom to settle the open claims. (8) Collection of the assigned claims We empower the purchaser,while retaining the right to cancel at any time, to sell or process the collateral goods in a customary business transaction and to collect the claims which arise or will arise from the sale himself. The purchaser is obligated to provide us with sufficiently comprehensive information regarding the outcome of the conditional goods and the details of their sale to enable us to exercise the rights and claims assigned to us vis-á-vis the respective third parties without further effort. The purchaser will hand over all concluded contracts and relevant documents pertaining to the conditional goods to us. If the purchaser acts in a manner that is faithful to the contract, we will not exercise the right of rescission. However, if the prerequisites for exercising retention of title such as payment default or incapacity to pay on the part of the purchaser do exist (Paragraph 7), we are entitled to disclose the assignment in his name and collect the claims we are due ourselves. (9) Release of securities If the value of the securities pledged to us exceeds our respective claims by more than 20 %, at the demand of the purchaser we will release corresponding securities at our discretion; we are responsible for selecting which securities to release. 9. Warranty (1) Basic policy The purchaser s rights to warranty presume that he has properly discharged his obligation to inspection and reporting defects (Section 7, Paragraph 1). We do not recognize complaints for recognizable defects unless they are submitted in proper form within the stated deadline. (2) Limitation period Unless agreed to otherwise in writing, the warranty period for newly produced goods is one year; in all other cases, six months, calculated from transfer of risks (cf. Section 5, Para 4). This deadline is a limitation period and also applies to all claims for replacement of consequential damages from defects. This period is not extended by subsequent improvements or delivery of replacement parts and applies regardless of whether an acceptance was agreed upon or not. Complaints regarding defects in subsequent improvements or delivery of replacement parts must also be submitted in accordance with Section 7, Paragraph 1; otherwise they are irrelevant to us. (3) Special provisions for purchased or individual parts Insofar as defects attributable to third-party products such as motors, pumps, thermostats, etc., or to faulty performance by subcontractors occur in our performances, it is agreed with the purchaser that we will assign our claims against our suppliers or subcontractors to him and he will accept this assignment without recourse to further claims, to the greatest extent possible and without requiring further clarification. The scope of our liability toward the purchaser corresponds to the scope to which the supplier or subcontractor is liable to us and will under no circumstances exceed this amount. For delivery of individual parts, we are only liable for execution according to the respective drawing. (5) Exchange and replacement If the purchaser presents us with an item or performance which we appraise as needing rework along with a claim for warranty, first we are entitled to subsequent performance, but not obligated to undertake an exchange at no cost. We are not obligated to furnish a replacement item for the duration of the repair; any such performances are invoiced according to our price list. Reclaimed or replaced parts become our property. (6) Disclaimer and limitation of liability Claims for damages are excluded to the greatest legally possible extent. In particular, we assume no liability for consequential or indirect damages, nor for the consequences of utilization of parts we deliver or performances we render, nor for third-party claims against the purchaser, nor for lost profits or failure to realize savings. Damages not affecting the interests of fulfillment of the contract are not compensated. The only exception therefrom is when the damage is caused by intent or gross negligence. Our liability is limited solely to the performance owed by us and is always limited to the amount of the net invoice value of the performance as calculated for the purchaser. (7) Exclusion of warranty Our warranty liability is excluded in the event of: - improper use, faulty installation or commissioning by the purchaser or third parties, - natural wear and tear, faulty or negligent handling, excessive load, - use of unsuitable operating materials, of non-original replacement parts and materials, - deficient construction work, unsuitable foundations, - rework executed without our prior consent, modifications, - repairs or other external interventions, and all other circumstances of equivalent severity not attributable to us. Liability for deficits in material and construction is excluded if the material has been specified by the purchaser or if our performance has been executed according to his documents. In such cases, we are not obligated to raise concerns even if blatant deficits in the purchaser s preliminary work are apparent. (8) Withholding warranty We are entitled to refuse fulfillment of warranty claims as long as the purchaser has not fulfilled his obligations to us. (9) Assignment prohibition Warranty claims against us are only granted to the immediate purchaser and must not be assigned without our prior agreement. (10) Costs of unwarranted claims If the purchaser raises groundless warranty claims against us, he will compensate us for all expenses and damages arising therefrom, and particularly for those costs arising from the requirement of employees and auxiliary personnel. 10. Court of jurisdiction The court of jurisdiction is Cloppenburg/Oldenburg. This applies to all disputes arising directly or indirectly from the contractual relationship, including actions due to checks and bills of exchange. 11. Final provisions The invalidity of individual provisions does not affect the validity of the remaining provisions of this agreement. If any of the provisions stated above are found to be invalid, a provision which approximates the meaning of the invalid provision to the greatest degree possible from a commercial standpoint is already agreed to by the parties to the contract. Status: May 2014 HANSA Ventilatoren- und Maschinenbau Neumann GmbH Saterland, Germany (4) Contents of the warranty We are also liable for defects which also include the lack of warranted features, excepting the following additional claims: Parts or performances which can be proven to be unusable or the use of which has been substantially impaired because of a circumstance prior to transfer of risks will be repaired or restored at our discretion, or redelivered ex works with shipment to point of loading. We are entitled to commission third parties in rectifying defects, with whom the purchaser must cooperate in the same manner as he does with us. We retain the right to substitute executions deviating from the contract for repair and replacement delivery as long as such substitutions are suitable to fulfill the originally described task. The purchaser is obligated to grant us the opportunity to examine the relevant circumstances as well as to undertake any measures we deem necessary free of charge; otherwise we are exempted from liability for defects. We are entitled to carry out the work we deem necessary at our factory, in the factory of a partner or at the purchaser s.

5 Installation Conditions for dispatch of our installation personnel 1. General information 1.1. Scope of application These Conditions apply to all installation performances we are to carry out. They comprise the basis for all offers, order confirmations and agreements, and also for future business. Verbal ancillary arrangements and other agreements deviating from these Conditions must be in written form. These Conditions apply as recognized upon uncontested acceptance of the order confirmation. The purchaser ensures that he has not agreed to any other assignment prohibitions and will permit these Conditions to come to bear in full in business transactions with his partners; any existing assignment prohibitions are invalid in relation to us Exclusivity These Conditions apply exclusively and to all future business with the purchaser. Conflicting or differing conditions of the purchaser will not become part of the contract and they will not replace our Conditions. This will also apply if despite awareness of such conditions of the purchaser, we do not object to these conditions and carry out our performance without reservation, unless an individual agreement deviating from these Conditions has been concluded in writing. The applicability of German law is also agreed with foreign purchasers General and other conditions Our General Terms and Conditions also apply to installation performances. Supplemental transport conditions apply to shipments. 2. Installation prices and payments 2.1. Standard price, right to adjustment The installation is invoiced according to the price list in the Appendix unless a flat rate has been agreed upon in writing. The prices in this list are understood to be net, plus statutory value-added tax at the applicable rate. We will conclude insurance policies only on the basis of separate agreement and at cost to the purchaser. Our prices refer solely to the performances set forth in our order confirmation. Performances not specified therein are not included within the scope of our performance. The prices determined in the Appendix are supplemented by the applicable statutory and tariff rules and arrangements. They only change when the stated provisions and arrangements change. We are entitled to adjust the prices accordingly for four months after conclusion of the contract, after prior notification Method of calculation We are entitled to calculate the installation prices weekly, monthly or after completed installation at our discretion and to demand advance payments at any time. The purchaser is only entitled to render the advance payment to employees we specify by name upon our written demand, but then is obligated to do so. Employees are authorized to collect funds only upon presentation of a written power of attorney Calculation of general performances The execution of general performances by us (preparation for installation, completion of plans and instructions, supervising installation, premiums for installation and liability insurance) is not included in the offered prices and will always require a separate agreement Calculation of replacement of installation personnel If it becomes necessary to replace installation personnel for causes not attributable to us, even in the event of force majeure, the costs arising therefrom will be additionally invoiced to the purchaser Payments The installation prices are due from the purchaser immediately upon receipt of the invoice without any deduction. This applies to agreed demands for advance payment as well. Withholding and/or offsetting with purchaser counterclaims that have not yet been judicially determined or that we dispute is always excluded. Our General Terms and Conditions apply as well, particularly Sections 3 and Cooperation of the purchaser 3.1. Approvals The purchaser is responsible for obtaining all required approvals, authorizations and permits. The purchaser will provide us with assurance that all official approvals exist and that all applicable regulations and standards have been fulfilled by the time work begins. In every case, he will indemnify us of any costs arising from the absence of the approvals or nonfulfillment of standards and regulations Local conditions The purchaser is obligated at his own cost and risk to ensure that normal construction site conditions including proper access roads exist. Our offer prices do not take hindrances into account. We require that the installation personnel can readily arrive at the installation site and immediately undertake their activity at the installation site without having to carry out preparatory work. All additional costs arising in association with a condition of the operation not corresponding to this requirement are borne by the purchaser General obligation to cooperate The purchaser is obligated to provide comprehensive support to our installation personnel during execution of the installation at his own cost and risk. He is required to enact all measures necessary to ensure the safety of persons and property at the installation site and to instruct the installation supervisor of existing safety precautions insofar as these are relevant to the installation personnel. He will notify us of any infringements of such safety precautions by the installation personnel. In the event of serious infringements, upon consultation with the installation supervisor the purchaser is entitled to deny the violator access to the installation site. 4. Technical assistance by the purchaser 4.1. Areas of activity (list of examples) The purchaser is obligated to provide technical assistance at his own cost and risk, and particularly to: a) Furnish suitable auxiliary personnel (masons, carpenters, welders, other expert personnel, laborers) in the amount required by the installation and for the required time; the auxiliary personnel will follow the instructions of the installation supervisor. We assume no liability for the auxiliary personnel; b) Execution of all excavation, construction, rescue and scaffolding work including procurement of the required construction materials; c) provision of the required equipment and heavy tools (e.g., lifting gear, compressors, ladders, scaffolds) as well as the necessary items and materials (e.g., assembly wood, wedges, supports, cement, plastering and sealing materials, lubricants, fuels, driving ropes and belts); d) provision of heating, lighting, operating power and water, including the required connections; e) provision of dry and lockable rooms required for storage of the tools of the installation personnel; f) transport of the installation parts to the installation location, protection of the installation parts and materials from all sorts of damaging influences, cleaning the installation parts; g) provision of suitable, theft-proof break and work rooms (with heat, lighting, washing facilities, sanitary facilities) and first aid for the installation personnel; h) provision of materials and execution of all other actions required to carry out and adjust the installation and where required, execution of contractually stipulated testing of the installation Avoidance of delays The technical assistance provided by the purchaser must ensure that the installation can begin immediately upon arrival of our personnel and be continued without delay until acceptance by the purchaser. Delays are borne by the purchaser and entitle us to additionally invoice the expenses arising from the delay. This invoice is calculated on the basis of a flatrate price contract according to expenses for materials, work time, travel time, etc Substitute performance, damage compensation If the purchaser fails to fulfill his obligations of cooperation or technical assistance, the following apply without prejudice to our further claims: a) We are entitled, but not obligated, to carry out his obligations in his place at his cost and risk. b) If the operation site has not been prepared for work or is unsuitable at the agreed start of installation or the execution is no longer possible for a cause not attributable to us, we retain the right to determine a new deadline; any costs arising from the deadline postponement are borne by the purchaser. If determination of a new deadline is not possible due to technical or operational conditions or to causes attributable to the purchaser, the purchaser is obligated to consent to rescission of the contract without deriving legal claims therefrom. If the purchaser has not adequately prepared for execution of the installation even after we have granted an appropriate deadline extension, we are entitled to rescind the contract or to demand non-fulfillment damage compensation in the amount of 30 % of the net value of the contract without proof; the purchaser retains the right to prove a lower sum while we retain the right to prove a higher. 5. Installation deadlines 5.1. Non-binding nature Unless otherwise agreed within the context of an explicit arrangement of a fixed deadline in writing, all statements regarding an installation deadline are only approximate.

6 5.2. Punctuality If an exceptional installation deadline has been designated as binding, it is deemed to have been fulfilled when the installation is ready for acceptance by the purchaser, or in the case of a contractually stipulated trial operation, for his pre-acceptance, before the deadline expires. justification of retention of title and assignment is subject to Section 8 of our General Terms and Conditions. If rights are lost due to attachment, mixture or processing in the meaning of Sections 946 to 950 of the German Civil Code (BGB), the purchaser is liable in accordance with Section 951 (BGB) Delays If the installation is delayed due to occurrence of circumstances not attributable to us, an appropriate extension of the installation deadline takes effect. This also applies if such circumstances occur after we have already fallen behind schedule. Any costs accrued through the delay are borne by the purchaser Delay compensation If the purchaser is subject to verifiable damage as the result of a delay attributable to us, he is entitled to demand damage compensation with the exclusion of all further claims; for a 100 % liability, this compensation amounts to not more than 0.5 % of the installation price for each full week of delay, however to a maximum total of 5 % of the installation price related to the value of that part of the system we are to install which because of the delay cannot be used in due time. If at the same time the delay is due to circumstances not entirely attributable to us, the compensation will be correspondingly reduced. The purchaser retains the right to prove a lower amount of damage while we retain the right to prove a higher. 6. Acceptance, assumption and transfer of risks 6.1. Assumption of risks The purchaser bears the risks of installation. The risks are transferred to the purchaser on acceptance; if the acceptance is delayed for causes not attributable to us, they are transferred at notification of readiness for acceptance Acceptance The purchaser is obligated to accept the installation as soon as he has been notified it has ended and any contractually stipulated trial operation of the installed delivery item has been carried out. If the installation proves to have not fulfilled the contract, we are obligated to remedy the deficiency at our cost. This does not apply when the deficiency is based on a circumstance attributable to the purchaser or is insignificant for the interests of the purchaser. Non-essential deficiencies do not justify refusal of acceptance Acceleration of acceptance Notwithstanding any other arrangements, the purchaser must exert every effort to expedite the earliest possible acceptance; if payment only upon acceptance by the principal or customer of the purchaser has been agreed, he must enforce a partial acceptance pertaining to our performance by his principal or customer at his own cost and without delay. If this cooperation obligation is infringed or in case of other delays of acceptance for causes not attributable to us, the acceptance is deemed to have been executed without reservation one week after notification that the installation has ended expires,. 7. Warranty 7.1. Basic policy After acceptance, we are liable for deficiencies in the installation appearing within one year after installation for new items and six months for other items, to the exclusion of all other claims of the purchaser regarding the manner in which we first remedy the deficiency. The purchaser is obligated to notify us of a determined deficiency in writing without delay and as concretely as possible. The period of liability for deficiencies is extended by the duration of the interruption to operations caused by the improvement work. If an installation part we deliver during the installation is damaged by causes attributable to us, we are obligated to repair the damage at our cost. If the subsequent performance has failed, the purchaser is entitled to the remaining warranty rights Limitations and exclusions of liability The purchaser is not entitled to enforce any claims for replacement or other rights due to any disadvantages associated with the installation against us beyond those granted to him within these Conditions. Compensation for consequential damages is excluded. We assume no liability when the deficiency is based on a circumstance attributable to the purchaser or is insignificant for the interests of the purchaser. Our liability is voided when modifications or repair work are carried out by the purchaser or third parties without our authorization. Our General Terms and Conditions apply as well, particularly Section Substitute performances by the purchaser If the equipment or tools we provide are damaged during transport commissioned or specifically designated by the purchaser or on the installation site or are lost through no fault of our own, the purchaser is obligated to compensate these damages. Damages attributable to normal wear and tear are disregarded. 9. Retention of title We retain title to all equipment, parts and tools delivered, assembled or provided within the context of the installation as collateral for our claims which we have or will have from the installation contract as well as those from all previous and future business with the purchaser. We remain conditional owner as implied by an extended and expanded retention of title until all our claims have been completely fulfilled. Our ownership is not excluded even by attachment or mixture. The purchaser hereby assigns to us the claims vis-á-vis third parties accruing to him with respect to our installation performance and the parts used for it due to sales or work contract or other legal reasons now or in the future, with all incidental rights and priority over other claims. We accept the assignment as collateral. Furthermore, the 10. Court of jurisdiction and applicable law The court of jurisdiction for all disputes arising from the contractual relationship including claims due to checks and bills of exchange is Cloppenburg/Oldenburg. The comprehensive applicability of German law is also agreed with foreign principals. 11. Final provisions The invalidity of individual provisions does not affect the validity of the remaining provisions of these Installation Conditions. If any of the provisions stated above are found to be invalid, a provision which approximates the meaning of the invalid provision to the greatest degree possible from a commercial standpoint is deemed agreed to. Status: May 2014 HANSA Ventilatoren- und Maschinenbau Neumann GmbH Saterland, Germany

7 Appendix: Installation prices (referring to Clause 2 of the above Installation Conditions and Section 3 of our General Terms and Conditions; the following amounts are only valid at present) 3. Work hours and remuneration 3.1. The installation personnel will accommodate the work schedule set by the purchaser to the greatest degree possible. 1. Travel costs 1.1. The travel costs for installation personnel are charged according to the expenditures we incur. Travel costs include: the costs of transport and transport insurance; the costs of personal luggage as well as the items which accompany transport and the tools sent; the costs for standard home leaves occurring during the installation period Travel costs are calculated according to the following kilometer flat rates: For passenger cars per km EUR For service vehicles per km EUR For trucks per km EUR 1.60 Travel times are considered as normal hours in accordance with For provision of mobile workshops including fuel consumption, we charge an additional: per workday EUR as agreed 3.2. The purchaser must certify the work hours and work performance of the installation personnel on a weekly basis in the form Installation Certification provided to him. This does not apply to installation engineers and installation inspectors; these employees will simply hand over a copy of the completed call report The requisite travel time (including travel times for arrival and departure) are charged as work hours, but without surcharges. Waiting time and the time for locating lodgings and any official registration required for distant installation are charged as work hours, insofar as work hours are omitted thereby. The full daily work hours are charged, but no less than 40 hours a week, even if the installation personnel are prevented from working the full time through no fault of their own Additional social contributions are charged for each work hour of a workday within the normal weekly shift of 40 hours: Air conditioning engineer (DDC control and refrigeration technology)eur Service technician EUR Senior fitter EUR Fitter EUR Apprentice EUR Special works performances are calculated according to a daily flat rate as follows: Maintenance technician only per EUR Control technician agree- EUR Refrigeration and air conditioning technician ment EUR 2. Allowance rates 2.1. Allowances for local and distant installations are charged per calendar day of absence from our factory (including Sundays and holidays): For air conditioning engineers, service technicians, senior fitters and fitters per day EUR For an installation period less than 3 days per day EUR Allowance rate I per hr. EUR ) Allowance rate II per hr. EUR ) Costs for overnight stays of EUR or are included. If the costs required for overnight stays exceed the amount stated directly above, the allowance rates are increased accordingly. If the installation requires our employees to reside in locations where the amounts stated here do not suffice to meet the cost of living, after prior notification a correspondingly higher rate applies. The allowance will also be charged for the duration of an incapacity to work due to illness or accident. 1) Allowance rate I including overnight costs 2) Allowance rate II without overnight costs 3.6. In each case, travel expenses are also applied. If any change to the general wage level or cost of living takes affect at the start of installation or during the installation period, our rates change accordingly For work to be performed under especially difficult, dirty, challenging or hazardous conditions, a surcharge of 5-10 % per work hour taking into account standard and operational guidelines is charged. The amount of the hardship surcharge is determined subject to our own discretion For overtime work and work on Sundays and holidays, the installation prices will be correspondingly increased based on surcharges stipulated by collective agreement or company practice; the purchaser will be separately invoiced for this increase. Overtime work will be performed insofar as is necessary and agreed upon. What constitutes overtime work is established on the basis of the respective collective agreement taking into account our company practice. The above pricing is based on a normal work time of 40 hours per week. At present, those hours exceeding the following work schedule constitute overtime work: Monday Tuesday Wednesday Thursday Friday 7:00 a.m. to 4:30 p.m. 7:00 a.m. to 4:30 p.m. 7:00 a.m. to 4:30 p.m. 7:00 a.m. to 4:30 p.m. 7:00 a.m. to 12:15 p.m. The above schedule includes a daily 45 minute break; on Friday, 15 minutes. 3.9: Overtime surcharges: 1st and 2nd hours overtime with 25 % surcharge 3rd and over hours overtime with 40 % surcharge Nights and Sundays with 65 % surcharge Holidays with 100 % surcharge Status: May 2014 HANSA Ventilatoren- und Maschinenbau Neumann GmbH Saterland, Germany