The Stock Exchange of Thailand index rose, while other Southeast Asian stock markets were subdued on Wednesday as a key deadline looms next week in the trade dispute between Washington and Beijing.
The public comment period for 25% US tariffs on another $200 billion of Chinese goods is set to end on Sept 5 and the tariffs are expected to take effect in late September.
The SET index gained 4.11 points or 0.24% to end the day at 1,722.26, in turnover of 38 billion baht.
The Thai market closed higher for a third straight session, eking out minor gains. PTT Global Chemical Plc rose nearly 2% while real estate developer U City plunged over 30%.
Malaysian shares retreated from a three-month high hit in the previous session, weighed down by healthcare and telecom stocks.
Dialog Group, down nearly 3%, was the biggest drag, while medical gloves and equipment maker Hartalega Holdings Bhd slid nearly 4%.
Financials weighed on the Philippine index with BDO Unibank dropping 1%. Aboitiz Equity Ventures was the biggest drag on the benchmark, falling nearly 3%.
Singapore stocks were marginally lower after two straight sessions of gains.
Conglomerate Jardine Matheson Holdings fell 1% while lender Oversea-Chinese Banking Corp retreated 0.6%.
Indonesian stocks ended 0.4% higher on the back of gains in consumer discretionary and energy stocks.
The index of the country's 45 most liquid stocks was up 0.6%.
