Standing in an upland valley in Kumamoto Prefecture, southwestern Japan, is a huge, dark-silver-colored flat building where silkworms are raised all year round.Believed to be one of the world's biggest bioclean silkworm factories, it was completed in April 2017 at a cost of 2.3 billion yen ($21 million), according to Kumamoto-based Atsumaru Holdings Co., one of its operators.The "Silk on Valley" project in Yamaga, located on the site of a former elementary school in a basin surrounded by mountains, is part of efforts to revitalize Japan's once-thriving sericulture industry.Japan was the wor…READ FULL ARTICLE
