legal ground
Article 867 of the Civil Code of People's Republic of China (PRC) The licensee of a patent exploitation license contract shall exploit the patent in accordance with the agreement, and shall not license a third party other than the agreement to exploit the patent and pay the royalties in accordance with the agreement. Article 871 The transferee of a technology transfer contract and the transferee of a technology licensing contract shall, in accordance with the agreed scope and time limit, undertake the obligation to keep confidential the undisclosed secret parts of the technology provided by the transferor and the transferor.