(ก) Subcontractor agrees that, except as may be required by Legal Requirements or permitted by Section 13.1.2, it shall neither disclose any Proprietary Information nor use Proprietary Information other than (i) after receipt of the Disclosing Party's written agreement (which shall not be unreasonably withheld) that such disclosure or use is necessary for proper performance of the Work or necessary for the ownership, financing, use, maintenance, repair, alteration, and/or operation of the Facilities, or (ii) on the Disclosing Party's behalf as the Disclosing Party otherwise may authorize in writing.
(ข) Subcontractor may use or disclose Proprietary Information if (i) such disclosure or use is necessary for the proper performance of the Work and (ii) such Subcontractor or supplier or such other third party enters into a confidentiality agreement with Subcontractor, as the case may be.
(ค) Each Party will provide the other with written Notice of any confidentiality agreement entered into pursuant to this Section 13.1.2 reasonably promptly after the execution thereof, and, on request, shall provide the other Party with a copy of such confidentiality agreement.