A decade after it exited the country, Mirae Asset Securities is set to reenter Japan through its acquisition of local brokerage Sanko Securities, as it looks to expand its presence in a market where retail investment is gaining momentum, the company said Thursday. The company said its board approved a plan to purchase 100 percent of the stakes in Sanko Securities through its U.S. affiliate, Mirae Asset Securities Holdings. The deal is valued at an estimated 42.6 billion won ($35.62 million), with the final price to be determined at closing after regulatory approvals and other conditions are met. Mirae Asset will inject a total of 100.6 billion won into its U.S. affiliate to fund the acquisition and subsequent business expansion in Japan. Sanko, which operates under Japan’s Okasan Securities Group, specializes in proprietary trading — buying and selling stocks, bonds and other securities with its own capital to generate returns. It posted a net profit of roughly 400 million won and net assets of 39.1 billion won for the fiscal year ended March 2026, the company said. The acquisition w