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2022 Annual Quality Integrity Report and social responsibility report

Date:2023-08-11

See attachment for details

2022 Annual Social Responsibility Report - Dun An Hetian.docx

2022 Annual Quality Integrity Report - Dun 'an Hetian.docx

2022 Social Responsibility Report - Thermal Technology.docx

Quality Integrity Report 2022 - Thermal Technology.docx