Recently, Morgan Stanley Capital International (MSCI), the internationally authoritative index provider, released the 2025 Environmental, Social, and Governance (ESG) rating results for Tongwei Co., Ltd. Demonstrating outstanding ESG performance, Tongwei achieved a latest rating upgrade to BBB, marking consistent annual one-level advancements in its steady climb.

1

Environmental Governance: Driving Sustainable Development Through Innovation

Each rating upgrade is rooted in Tongwei's inherent commitment to sustainability. As a leader in green energy and green agriculture, Tongwei is committed to achieving its strategic vision and environmental pledges of becoming a "world-class supplier of healthy and safe food and world-class operator of clean energy." In 2024, the Company continued to enhance its environmental management system, systematically driving innovation in energy conservation and consumption reduction, improving energy efficiency, and effectively reducing pollution and waste emissions. Tongwei collaborates with all stakeholders to build a beautiful China and share the fruits of green development.

• A renewable electricity share of 64.01%

• A water recycling and reuse rate of over 98%

• A year-on-year reduction of 16% in total carbon emissions within Scopes 1, 2 & 3

• A year-on-year reduction of over 19% in total emissions of waste gas, wastewater, and solid waste

2

Social Responsibility: Conveying Warmth Through Diverse Practices

Each rating advancement begins with Tongwei's deep-seated sense of social responsibility. Guided by its corporate philosophy of "Pursuing Excellence and Dedicating to Society," Tongwei persistently strives toward its vision of "For Better Life." In 2024, the Company effectively safeguarded employees' legal rights and interests, promoted sustainable supply chain development, deepened social responsibility practices, and actively participated in public welfare and charity activities, demonstrating its sense of social responsibility and humanistic care through concrete actions.

• Global corporate signatories of the Women's Empowerment Principles (WEPS) by UN Women

• RMB 2.673 billion invested in R&D

• A year-on-year increase of 88.66% in the number of newly authorized patents for invention

• Participation in drafting over 90 domestic and international standards

3

Corporate Governance: Consolidating the Foundation of Development with System Construction

Each rating enhancement is inseparable from Tongwei's progressively refined governance framework. Aligned with its "Together to Win" sustainability strategy, Tongwei has established a comprehensive sustainable development management system to holistically reinforce corporate foundations. In 2024, the Company built nine sustainability management systems across three dimensions—"Strategy, Stewardship, Solution (3S)." These systems ensure Tongwei's resilience in sustainable development and transform its governance capabilities from "an internal requirement" into "a source of international competitiveness."

• Announcement of 14 sustainability commitments

• 20 sustainability development goals

• Accumulated over 70 domestic and international honors and awards, including recognitions from UNGC and UNIDO.

• First enterprise to pass the TÜV Rheinland traceability audit and obtain an all-A-grade evaluation result

• First enterprise in the PV sector to receive the EcoVadis Gold Medal

The progression of Tongwei from CCC to BBB in today's MSCI rating transcends mere numerical significance. It reflects every parameter optimized in its Lighthouse Factories, every page of notes from employee training sessions, and every ray of sunlight captured at its "fishery and PV integration" power stations. As embodied in Tongwei's "Together to Win" sustainability mission, these individual stories collectively weave the trajectory of its rating ascendance and lay the foundation for the Company's green development and resilient growth.

The MSCI ESG Rating represents one of the most authoritative and influential ESG assessment systems in global capital markets, serving as a crucial benchmark for evaluating listed companies' sustainability capabilities and long-term investment value through rigorous, transparent, and objective analysis. Based on an analysis of thousands of data points, the rating thoroughly evaluates corporate performance across Environmental, Social, and Governance (ESG) dimensions, classifying results into seven levels from highest to lowest: AAA, AA, A, BBB, BB, B, and CCC.