May 4 (Bloomberg) -- Shares of the following companies had unusual moves in Vietnam trading. Stock symbols are in parentheses and prices are as of the 2:15 p.m. close in Ho Chi Minh City. The VN Index, the benchmark measure of the Ho Chi Minh City Stock Exchange, gained 1.6 percent to 476.32, the highest close since May 13, 2011. The gauge rose 0.5 percent this week, the fifth straight advance.
Na Ri Hamico Mineral Joint-Stock Co. (KSS VN), which provides construction and mining services, dropped 4.5 percent to 12,700 dong, the biggest fall since March 30. Its first-quarter unconsolidated net loss was 112 million dong ($5,400), compared with net income of 1.21 billion dong a year ago, according to a statement with the bourse.
NBB Investment Corp. (NBB VN), a Ho Chi Minh City-based property developer, advanced 2.6 percent to 39,000 dong. The company forecasts its net income will rise to 216.6 billion dong this year from 69.6 billion dong in 2011, according to an exchange statement.
Post & Telecommunications Investment & Construction Joint-Stock Co. (PTC VN), a builder of roads, ports and telecommunications infrastructure, gained 4.8 percent to 17,400 dong, the highest close since Oct. 14. Its first-quarter unconsolidated net income rose to 161 million dong, compared with a loss of 3.25 billion dong in the same period last year, according to a filing with the bourse.
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