China Tower Corporation Ltd. has announced a change in accounting estimates related to its Distributed Antenna System (DAS) assets. The company previously set the estimated useful lives of these assets at seven years, based on industry standards at the time. Following improvements in domestic technical standards, the Board, after review by its audit committee, determined that updating the accounting estimates would more accurately reflect the assets' useful lives and utilisation. The change complies with applicable laws, IFRS Accounting Standards, and is considered to be in the best interests of the company and its shareholders. Shareholders and potential investors are advised to exercise caution when dealing in the company's securities.