The U.K. has corralled about 20 nations to back a pledge to stop funding foreign fossil fuel projects, though the diplomatic win is tempered by the omission of China and Japan.

A one-page statement will be unveiled on Thursday at the COP26 climate talks, according to people familiar with the matter.

It isn’t binding and would still allow limited support for foreign fossil fuel ventures. But it marks a further tightening of the flow of money from public development banks to oil, gas and coal.