Shinwa Wise Holdings Co., Ltd. engages in the arrangement and operation of auctions. It operates through the following segments: Auction-Related Business, Renewable Energy-Related Business, and Others. The Auction-Related Business segment handles handling prices of auctions, modern art, modern ceramic art, wine, western art, branded goods, watches, and jewelry auctions. The Renewable Energy-Related Business segment engages in the sale of small sunlight power generation facilities and electric power. The Others segment includes support services for medical institutions. The company was founded on June 15, 1989 and is headquartered in Tokyo, Japan.