Ann: Ta Khoa Nickel Successful Concentrator Pilot Programme, page-9

Aug 28 (Reuters) - Shares of Vietnamese electric-vehicle maker Vinfast surged 21% on Monday, extending a rally from last week that more than quadrupled its market value to $160 billion.The company made a blowout debut on Wall Street this month and has quickly grown in valuation to become the third-most valuable automaker - only behind Tesla (TSLA.O) and Toyota (7203.T).But Vinfast's small amount of publicly available shares has made the stock prone to volatility, with shares jumping or slumping more than 14% in 11 of the past 12 sessions.