Contracts Between Corporations With Interlocking Directors is stated in SEC. 33 of Batas Pambansa Blg. 68 "The Corporation Code of the Philippines" with details as follows:
SEC. 33. Contracts between corporations with interlocking directors. - Except in cases of fraud, and provided the contract is fair and reasonable under the circumstances, a contract is fair and reasonable under the circumstances, a contract between two or more corporations having interlocking directors shall not be invalidated on that ground alone: Provided, That if the interest of the interlocking director in one corporation is substantial and his interest in the other corporation or corporations is merely nominal, he shall be subject to the provisions of the preceding section insofar as the latter corporation or corporations are concerned.
Stockholdings exceeding twenty (20%) percent of the outstanding capital stock shall be considered substantial for purposes of interlocking directors.