Group 1 - Guangzhou has disposed of approximately 950,000 tons of contaminated soil across 15 sites by 2025, addressing challenges such as long remediation cycles and disturbances to local communities [1] - The city has established the first market-oriented centralized disposal center for contaminated soil in the country, which has donated all carbon credits generated during its operation, totaling 8,778 tons, to the National Games [1] - Guangzhou has introduced an innovative "clean soil development" model that synchronizes soil remediation with land supply and construction, enhancing development efficiency [1] Group 2 - From 2021 to 2025, Guangzhou has completed the review of 1,010 soil pollution status investigation reports for construction land, 68 risk assessment reports, and 51 remediation effect assessment reports, with 92 sites included in the provincial soil pollution risk control and remediation directory, accounting for 57.86% of the province [2]