system: You are a contract-analysis assistant performing a span-extraction task. You are given an excerpt from a commercial contract and the name of a clause type to locate within it.

Return the exact text of the requested clause, copied verbatim from the excerpt — identical wording and punctuation, with no paraphrasing, summarising, explanation, or added commentary.

The excerpt is one window of a much longer contract and often will not contain the requested clause. If the requested clause does not appear in this excerpt, respond with exactly: Not found.

Output only the extracted clause text, or the exact string `Not found.` — nothing else.

user: Contract excerpt:
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from time to time; 4.2.2 identify, assess and communicate opportunities for W2E; and 4.2.3 undertake joint marketing initiatives and other marketing activities which are mutually beneficial for the business interests of both Parties and as shall be agreed by the Parties from time to time. 4.3 Each Party will provide cooperation, support, assistance and information to the other Party in order to: 4.3.1 coordinate efforts to seek to obtain work from the new or prospective customer; 4.3.2 promote and market the services of both Parties, including by the development of standardised pricing, joint sales proposals and joint marketing materials; 5 4.3.3 where appropriate, form a consortium for the purposes of undertaking joint pitches or presentations; 4.3.4 develop and agree to the pricing structure to be offered to Customers from time to time, having regard to the cost of delivery and related products and services, including the cost of raw materials, quality assurance, volume, manufacturing overhead, G&A overhead and health and safety costs; and 4.3.5 develop and agree to the pricing strategies (including a hedging strategy where appropriate) to guard against significant variance in product and service costs over the term of this Agreement as a result of fluctuations in raw material prices, currency fluctuations, wage inflation and other factors. 4.4 The Parties shall jointly collaborate on all aspects of the Alliance (including in relation to technology for process and manufacture) and shall convene regular meetings from time to time in order to discuss joint activities and to give effect to the terms of this Agreement. 5. SHBV OBLIGATIONS 5.1 SHBV agrees that it shall manufacture and supply to W2E (or as it shall direct), W2E Equipment, in each case in accordance with the terms of the manufacturing agreement ("Manufacturing Agreement") to be entered into by the Parties on or following the entry into this Agreement. 5.2 SHBV agrees that it shall at the request of W2E, supply (and if requested, install) SHBV Boilers, as well as primary chambers, secondary chambers and economises (which SHBV agrees to manufacture and supply) to such persons as W2E shall nominate, on the terms specified in or otherwise agreed to by the Parties. 5.3 SHBV shall continually during the Term and from time to time at W2E's request, provide W2E with verbal and written technical and business advisory assistance concerning SHBV Technologies where these would integrate into an Engineered Solution as part of servicing W2E Customers. This assistance shall include the development and provision of research, technical papers, background information, product and process information, process and equipment schematics, marketing presentations, capital cost information, industry reports, pricing models, scientific data, project proposals, technology evaluation, and preliminary project development services for any proposed projects. This advisory assistance will be in outline only and therefore to be considered not comprehensive detail. 5.4 SHBV shall from time to time at W2E's request, perform and provide to W2E project specific technical calculations and assessments needed to support the delivery of an Engineered Solution for servicing W2E Customers.. 6 6. W2E OBLIGATIONS 6.1 W2E agrees that it will use reasonable endeavours to procure that a SHBV Boiler, and where applicable, a primary chamber, a secondary chamber and an economiser (in each case as supplied by SHBV as contemplated by Clause 5.2), forms part of the Engineered Solution implemented for a W2E Customer within the Territory. W2E shall have no obligations under this Clause where a W2E Customer elects for whatever reason not to include a SHBV Boiler, a primary chamber, a secondary chamber or an economiser supplied by SHBV as part of the Engineered Solution or directs W2E to utilise an alternative product. 6.2 Without prejudice to the obligations of the Parties under Clause 4, W2E shall be responsible, as it deems appropriate in relation to individual projects and unless otherwise agreed in writing, for the following: 6.2.1 conceptual and front end engineering design (FEED) in order to establish unknowns for customers and to establish a basis for plant design; 6.2.2 entering into construction and installation contracts for the Engineered Solution as it sees fit; 6.2.3 the commissioning of waste2energy plants; and 6.2.4 the negotiation and entry into operations and maintenance contracts in respect of waste to energy plants as customer demand requires. 6.3 W2E agrees that it shall use reasonable endeavours to procure the right for SHBV to commission SHBV Boilers (and where applicable, primary chambers, secondary chambers and economisers that are supplied by SHBV as contemplated by Clause 5.2) that form part of the Engineered Solution. 7. MANUFACTURING AGREEMENT
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Extract the exact clause related to "Agreement Date" from the excerpt above.