Section 49
SEC. 49. No lode or placer mining claim shall be recorded unless the declaration of location be accompanied by proof that the locator, or each of them, in case there be more than one, is a citizen of the Philippines, of legal age, or is an association, or a corporation organized and constituted under the laws of the Philippines, at least sixty per centum of the capital of which association or corporation is owned and held by citizens of the Philippines.