The traditional postal, saving and life insurance business processes all require documents and receipts. To reduce the consumption of paper, digital services are provided to replace physical paper consumption, reducing consumption of paper while lowering labor costs and customer wait time, improving operational efficiency and service quality. In addition, to encourage resource recycling, customers reusing postal convenience boxes will continue to be provided with postage discounts. In 2024, 3,937,349 convenience boxes were used for the first time, and 656,200 were recycled, with the reuse rate of 14.29%.

Water use at Chunghwa Post is mainly for daily use in the offices, and the source is all from the tap water, which would not cause a major impact on the water intake. The total water consumption in 2024 totaled 629,274 million liters.
Banqiao Post Office of Chunghwa Post participated in the “2024 Annual Water Conservation Excellent Performance Unit Selection” held by the Water Resources Administration of MOEA. After the on-site inspection of the selection team, Banqiao Post Office finally stood out and won the Outstanding Award in the Public Agency Group. Chunghwa Post participated in the 2025 Water Conservation Excellent Performance Awarding Ceremony held by MOEA on March 20, 2025.

Chunghwa Post takes specific actions to make contributions to environmental protection. To jointly protect the marine environment and the ocean, 2 sessions of beach cleanup activities were held in 2024, with a total of 146 participants, and the marine debris cleaned totaled 56 bags (402 kilograms).

To actively respond to the green building promotion policy, low-carbon design is introduced for the renovation of old buildings. It is hoped that our new buildings will meet the daily energy conservation and water resources indicators in the future. From 2007 to 2024, the cumulative number of Green Building Label was 22, among which 13 met the Carbon Dioxide Reduction Index; the cumulative number of Green Building Candidate Certificate was 36, among which 19 met the Carbon Dioxide Reduction Index. In 2024, one Green Building Label was obtained (Tainan Wanli Post Office), and one Green Building Candidate Certificate was approved (Changhua Guangfu Rd. Post Office).

The Postal Logistics Park has been the major construction of Chunghwa Post in recent years. By incorporating human-centered and sustainability-oriented thinking into the design, this Park makes full use of renewable energy, such as wind and solar energy. Multi-functional intelligence management systems with the functions of safety monitoring,traffic guidance, parking management, personnel control, intelligent lighting and intelligent conference rooms are planned. The comprehensive use of smart sensing network control and high-efficiency
electromechanical integration technology can effectively improve the quality and functionality of building use,realizing a smart green building that integrates sustainability,energy conservation, and humanity, and the energy saving potential of the buildings is estimated to reach over 30%. In addition, the functions and life of the buildings in the park are improved based on the Building Information Modeling (BIM).

Since 2015, Chunghwa Post has successively installed solar PV power generation systems on the roofs of the buildings of its post offices and sold the electricity generated back to Taiwan Power Company. As of the end of 2024, Chunghwa Post Installed solar PV power generation system with the total capacity of 3,787.42 kWh, and will continue to inventory idle rooftop space to further increase the proportion of renewable energy use.