Zhejiang Communications Technology Co., Ltd.

(1) General Construction Contracting (GCC) Mode: Under this model, the contractor undertakes the construction phase of a project as stipulated in the contract. Its core responsibility is construction execution, which includes organizing construction based on design drawings provided by the client, managing the construction process, procuring necessary materials and equipment (some of which may be supplied by the client), and ensuring the project is completed in accordance with design requirements. It generally does not involve design activities. During the reporting period, newly signed GCC projects accounted for over 50% of the company’s total new project signings. (2) Engineering-Procurement-Construction (EPC) Mode: EPC refers to a contracting method where the contractor, engaged by the project owner, undertakes the entire process of a project—including design, procurement, and construction—and assumes comprehensive responsibility for quality, safety, schedule, and cost. EPC projects are typically executed on a turnkey basis. During the reporting period, EPC projects represented approximately 30% of the company’s total new project signings. (3) Specialized Contracting Mode: This involves the client subcontracting specific specialized works within a project to enterprises with corresponding qualifications. During the reporting period, the company undertook a significant number of specialized projects, including earthworks, subgrade and pavement construction, bridges, tunnels, ports, waterways, and building construction. (4) Concession Operation Mode: Infrastructure concession operations refer to arrangements where the government selects a domestic or international legal entity or organization through open competition to act as a concession operator. Under a concession agreement, the operator invests in, constructs, and operates infrastructure or public utilities within a specified scope and period, providing public goods or services in return for收益. During the reporting period, the company was awarded infrastructure concession projects in regions such as Xinjiang and Guizhou. (5) Area Development Mode: This is a government-led approach adopting the Authorize-Build-Operate (ABO) model. It involves land acquisition and reserve, construction of infrastructure and public facilities, and subsequent operation within a designated area. (6) Integrated Construction-Maintenance Mode: This model involves bundling highway construction and maintenance projects along with related resources and services by region or category. The government appoints a project owner to introduce social capital through open tender. The social capital provider is responsible for project implementation (including financing and EPC construction) and post-completion maintenance services for a specified number of years. The project owner makes annual payments to the social capital provider based on performance evaluations of construction and maintenance quality. The project is returned to the government upon expiration of the service period.