Is Sichuan able to invest in Dingsheng Lithium Industry a state-owned enterprise?

yes. Sichuan Nengtou Dingsheng Lithium Industry Co., Ltd. is a large-scale state-owned enterprise company which is controlled by Sichuan Energy Investment Group Co., Ltd. and integrates research and development, production and sales of lithium salt series products. State-owned enterprises mean that the state has ownership or control over its capital, and the will and interests of the government determine the behavior of state-owned enterprises.