Khairul Bashar Abu Taher Mohammed, Chief Regulatory Officer of Dhaka Stock Exchange (DSE) Limited, Hasnain Bari, DGM of Chittagong Stock Exchange Limited and Mir Nazim uddin Ahmed, CEO of Islami Commercial Insurance Company Limited, exchange documents after signing a tri-party agreement on “Electronic Subscription System” at DSE head office in the capital recently. Top officials from respective organizations were present.