Mirae Asset Securities of South Korea is entering Japan's retail brokerage market by acquiring Sanko Securities for approximately $35.6 million. Mirae Asset Securities announced on Thursday that its board of directors has approved the acquisition of Japanese brokerage firm Sanko Securities for approximately KRW 47.6 billion (USD 35.6 million) through its U.S. subsidiary, Mirae Asset Securities Holdings. The company will inject JPY 12 billion (USD 76.1 million) into its U.S. subsidiary.