with POSCO to explore the setting up of an Integrated Steel Mill in Mundra, Gujarat, with an estimated total investment of USD 5 billion. POSCO in other developing countries POSCO have pursued investment opportunities in other developing countries such as Vietnam and Mexico. It was announced in August 2006 that POSCO will build a large-scale steel mill in southern Vietnam. POSCO plans to build the US$1 billion plant in two phases for hot-rolled by the end of 2012 and cold rolled products by the time of December 2009. When completed, the mill is expected to produce three-million tons of steel products annually. Posco also plans to build a $250 million plant in the city of Altamira, Mexico, to produce 400,000 tons of galvanized steel sheet a year for automakers. The venture will be Posco's first wholly owned steel-plate plant in North America. Posco began construction in early 2008, and started operations in 2009, producing galvanized and galvannealed steel. On June 30, 2006, POSCO completed the construction of its sixth continuous galvanizing line (CGL) at its Gwangyang mill in the South Jeolla Province. With this new addition, POSCO becomes the no.2 producer of sheet-steel just behind ArcelorMittal. In early 2007, Warren Buffett's Berkshire Hathaway purchased a 4% stake in POSCO. In 2014 they sold their share. In February 2013 POSCO signed a Memorandum of Understanding with Afferro Mining, Inc, with a view to developing iron ore resources in Cameroon. In November 2013, the completion of steel plant construction in Cilegon, Indonesia is scheduled. It is predicted that the annual production capability of this plant will be 3 million tons of molten iron. On July 31, 2012, the moving-in ceremony of 4 large steel structured pillars surrounding integrated steel mill furnace was held. Operations Head Office POSCO's Headquarters, along with the POSCO Center, form the 'brain' of the company, overseeing major tasks, such as the management, planning, and finances of the steelworks at Pohang and Gwangyang. The construction of POSCO headquarters at 1 Goedong-dong, Nam-gu, Pohang, was completed on April 1, 1987. POSCO Center Hosts a variety of cultural programs, events, and exhibitions throughout the year. Pohang and Gwangyang Steelworks Pohang - Constructed in four phases between April 1970 and February 1981 along Korea's southeast coast, the nation's first integrated steelworks has produced 230 million tons of pig iron through March 2004 - enough to build some 250 million compact cars. Crude