Formosa, which runs an US$11 billion steel plant, sullied more than 200km of coastline, killing more than 100 tonnes of fish and devastating the environment, jobs and economies of four provinces Vietnam’s central region is expected to take a decade to completely recover from an industrial accident caused by a unit of a Taiwan conglomerate, which led to the Vietnam’s worst ever environmental disaster, the government said. Formosa Ha Tinh Steel, a unit of Taiwan’s Formosa Plastics that runs an US$11 billion steel plant, sullied more than 200km of coastline in April, killing more than 100 tonnes of fish and devastating the environment, jobs and economies of four provinces.