The only thing this is going to do is siphoning off non-US LNG cargos that would have gone to other places (Japan, Korea, Taiwan or god forbid Europe) to China. And US cargos will replace them there. Except in a trading sense, LNG is a fungible commodity and it does not matter much where your cargo comes from in a quality sense. China is like a turkey that prances around right before Christmas. Not a healthy attitude.
U.S. exports of liquefied natural gas (LNG) to China in July fell to their lowest level in a year and are expected to decline further as the Sino-U.S. trade dispute forces utilities to seek alternative supplies.