Don Muang Tollway Public Company Limited announced at the board meeting held on 10 August 2022, has approved in principle a Joint Venture Agreement with HANSHIN EXPRESSWAY COMPANY LIMITED or HEX in Japan for business expansion in inspection and maintenance for bridges, expressways, elevated roads and other infrastructures by authorizing the Executive Committee to act and proceed with any necessary or relating matters to investment thereof and to support the business growth expansion of the Company. Therefore, the Executive Committee Meeting No.6/2023 on 27 March 2023 has considered the details and conditions of the investment and approved the entering into the Establishment of a Joint Venture Company. The details are as follows: Company Name: ASIAM Infra Company Limited, Joint Venture: 4 April 2023, Agreement Date Company: Expected that the company registration will be completed within Incorporation Status April 2023.

Type of Business: To provide services for inspection, measurement, diagnosis, evaluation, design and planning for repair, improvement and reinforcement of infrastructure facilities and sale of materials for related businesses; Registered Capital: THB 40,000,000 Ordinary shares 4,000,000 shares (Four million shares) Par value THB 10 per share.