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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may be attended by directors in person or by telephone, video conference or by proxy. Article 59 Five (5) directors present in person or by proxy shall constitute a quorum for all meetings of the Board of Directors. If at any properly convened meeting, no quorum is constituted because less than five (5) directors are present in person or by proxy, then the Chairman of the Board may call another meeting with seven (7) days notice to each director. All directors receiving notice of such second meeting shall be deemed to be present at such meeting. Article 60 If a director is unable to attend a Board of Directors meeting, he may issue a proxy and entrust a representative to attend the meeting on his behalf. The representative so entrusted shall have the same rights and powers as the director who entrusted him. One person may represent more than one director by proxy. Article 61 The Board of Directors will cause complete and accurate minutes (in both English and Chinese) to be kept of all Board meetings. The Chinese and English text of all resolutions to be adopted by the Board of Directors at Board meetings shall be agreed by the directors at the Board meeting and recorded by the secretary appointed for the meeting, and those members approving the resolutions shall sign such records. Draft minutes of all meetings of the Board of Directors shall be distributed to all the directors as soon as practicable after each meeting but not later than thirty (30) days from the date of such meeting. The final minutes shall be completed by the Chairman and the Vice-Chairman and distributed to each director and each Party not later than sixty (60) days after the relevant meeting. The Joint Venture Company shall maintain a file of all Board meeting minutes and make the same freely available to the Parties and their authorized representatives. Article 62 The Board of Directors may adopt any resolution without a meeting if all of the directors then holding office consent in writing to such action. Such written consent may be signed by the directors in different counterparts, shall be filed with the minutes of the Board of Directors proceedings and shall have the same force and effect as a unanimous vote of the directors present at a duly constituted meeting of the Board. Page 16 Article 63 Directors shall serve without any remuneration, but all reasonable costs incurred by the directors in attending Board meetings (including but not limited to travel expenses) shall be borne by the Joint Venture Company. CHAPTER 11 BUSINESS MANAGEMENT ORGANISATION Article 64 The Joint Venture Company shall establish a business management organization to be in change of the day-today operation and management of the Joint Venture Company. Article 65 The Joint Venture Company's business management organization shall be under the leadership of a CEO, who shall report directly to the Board of Directors. In addition to the CEO, the Joint Venture Company shall have a Deputy CEO, Chief Financial Officer, Director of Sales, Director of Human Resources, Director of Manufacturing, and Director of Research and Development (together with the CEO, the "Senior Management Personnel"). The CEO shall be in charge of the day-to-day operation and management of the Joint Venture Company. The Deputy CEO shall assist the CEO in his work and shall report to the CEO. Other department directors shall report directly to the CEO. Article 66 The CEO shall be nominated by Party B, and the Deputy CEO shall be nominated by Party A The Chief Financial Officer shall be nominated by Party A, and an Assistant Financial Officer may be nominated by Party B. The Chief Financial Officer must consult with the Assistant Financial Officer, if any, on all important financial matters. Each officer nominated by a party or parties in accordance with this paragraph shall be appointed by the Board of Directors. The other Management Personnel shall be nominated by the CEO and appointed by the Board of Directors. The Board may dismiss any Management Personnel. All replacements for any of the Management Personnel, whether by reason of the retirement, resignation, disability or death of a manager or of the removal of a manager by the Board of Directors or by the Party which nominated him, shall be nominated and appointed in the same manner as the original appointee. Other details of management shall be decided by the CEO. Article 67 The CEO shall be in charge of the day-to-day operation
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Extract the exact clause related to "Effective Date" from the excerpt above.