This opinion paper analyzes China’s new mandatory climate disclosure standards, which were formally launched between December 2024 and December 2025. We argue that China has not simply adopted the investor-focused model of the International Sustainability Standards Board (ISSB) or the European Union’s comprehensive double materiality approach. Instead, it has crafted a distinct “third way”—a new model of sustainability governance marked by a deliberate blending of global convergence and national priorities. Through a close, provision-level comparison, we identify eight specific provisions where China’s standard goes beyond both IFRS S2 (Climate-related Disclosures, issued by the International Sustainability Standards Board) and ESRS E1 (Climate Change, issued under the European Sustainability Reporting Standards), revealing a consistent rationale that treats corporate disclosure as an instrument of national governance, reaching institutional completeness by simultaneously issuing assurance standards, and maintaining developmental sensitivity through mechanisms like the proportionality principle. While considerable implementation challenges persist, this paper concludes that China’s approach presents a useful and reproducible model for other developing nations, positioning China as an active contributor to the evolving global standards architecture.