China has started to formulate matching regulations and rules to support the implementation of the newly-adopted foreign investment law, Premier Li Keqiang said Thursday.

Li made the remarks at the opening plenary of the Boao Forum for Asia (BFA) annual conference in Boao, a coastal town in southern island province of Hainan.

The supporting rules will go into effect together with the foreign investment law on Jan. 1, 2020, he said.