By Chandini M Aug 31 (Reuters) - Most Southeast Asian stock markets edged up on Thursday, in line with Wall Street and broader Asia, as upbeat Chinese and U.S. economic news boosted investor sentiment, even as tensions over North Korea stewed in the background. For the month of August, the Chinese manufacturing sector clocked an unexpected growth, with the official Purchasing Managers' Index released on Thursday standing at 51.7, up from the previous month's 51.4. The U.S. Commerce Department said on Wednesday that its second estimate of gross domestic product showed that the economy grew at an annual 3.0 percent in the second quarter, the quickest in more than two years, thanks to robust consumer spending and strong business investment. In addition, the ADP National Employment Report showed U.S. private-sector employers hired 237,000 workers in August for the biggest monthly increase in five months, driving expectations for a solid U.S. August non-farm payrolls figure. "We are just following what happened in the international markets, although threat from North Korea is waning, I think we are still waiting to see what actions U.S. might take," said Mikey Macainag, an analyst with Sunsecurities Inc. Meanwhile, tensions between the United States and North Korea escalated after President Donald Trump dismissed any diplomatic negotiations via a tweet, saying "talking is not the answer," a day after the reclusive state fired a ballistic missile that flew over Japan. In Southeast Asia, Singapore shares led the gains with a rise of 0.4 percent, aided mostly by financials. The city-state's central bank said on Thursday bank lending in July rose 5.9 percent from a year earlier. Index heavyweights United Overseas Bank and Oversea-Chinese Banking Corporation were up about 1 percent each. "This market is going to continue its bull run, but for now we are going sideways, just consolidating," Macainag said. In August, Singapore shares have shed 1.6 percent so far, heading for their first monthly decline in eight. Vietnam shares climbed as much as 0.4 percent to their highest in over three weeks, with real estate company Vingroup JSC being the biggest boost. For the month, Vietnam shares have declined 0.4 percent so far and were on track to snap three straight monthly gains. Indonesian shares fell as much as 0.2 percent, hurt mostly by material and energy stocks. Chandra Asri Petrochemical Tbk fell 1.6 percent, while United Tractors Tbk was down 1.2 percent. The Malaysian market was closed for a national holiday. For Asian Companies click; SOUTHEAST ASIAN STOCK MARKETS - Change at 0329 GMT STOCK MARKETS Change on the day Market Current previous close Pct Move Singapore 3277.85 3265.26 0.39 Bangkok 1613.5 1613.34 0.01 Manila 7961.47 7956.73 0.06 Jakarta 5870.241 5872.506 -0.04 Ho Chi Minh 779.25 778.65 0.08 Change on year Market Current End 2016 Pct Move Singapore 3277.85 2880.76 13.78 Bangkok 1613.5 1542.94 4.57 Manila 7961.47 6840.64 16.40 Jakarta 5870.241 5296.711 10.83 Ho Chi Minh 779.25 664.87 17.20 (Reporting by Chandini Monnappa in Bengaluru; Editing by Subhranshu Sahu)