| 06/15/2026 3:19 PM | CDT Environmental Technology Investment (1793895) Issuer Wang Tiefeng (2128020) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 06/15/2026 3:19 PM | CDT Environmental Technology Investment (1793895) Issuer Zuhong Xiong (2128166) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 06/15/2026 3:21 PM | CDT Environmental Technology Investment (1793895) Issuer Kai Ling (2127967) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 06/15/2026 3:21 PM | CDT Environmental Technology Investment (1793895) Issuer Cui Lijun (2127983) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 06/15/2026 3:22 PM | CDT Environmental Technology Investment (1793895) Issuer Dongming Zhang (2127449) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 05/28/2026 8:00 AM | CDT Environmental Technology Investment (1793895) Filer | Form 6-K Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 | |
| 05/15/2026 3:45 PM | CDT Environmental Technology Investment (1793895) Filer | Form 6-K Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 | |
| 04/17/2026 3:16 PM | CDT Environmental Technology Investment (1793895) Filer | Form 424B3 | |
| 04/10/2026 11:57 AM | CDT Environmental Technology Investment (1793895) Issuer Yaohui Wang (2127831) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 04/09/2026 8:28 AM | CDT Environmental Technology Investment (1793895) Issuer Yunwu Li (2127916) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 04/03/2026 3:14 PM | CDT Environmental Technology Investment (1793895) Issuer SCHULMAN HARRY D (1231606) Reporting | Form 3 Initial statement of beneficial ownership of securities | |
| 03/10/2026 11:15 PM | CDT Environmental Technology Investment (1793895) Filer | Form EFFECT | |
| 03/03/2026 8:59 PM | CDT Environmental Technology Investment (1793895) Filer | Form F-1 Registration statement for securities of certain foreign private issuers | |
| 01/05/2026 10:27 AM | CDT Environmental Technology Investment (1793895) Filer | Form 6-K Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 | |
| 12/23/2025 8:14 AM | CDT Environmental Technology Investment (1793895) Filer | Form 6-K Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 | |
| 11/28/2025 5:02 AM | CDT Environmental Technology Investment (1793895) Filer | Form 6-K Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 | |
| 11/13/2025 5:07 AM | CDT Environmental Technology Investment (1793895) Filer | Form 6-K Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 | |
| 09/09/2025 8:24 AM | CDT Environmental Technology Investment (1793895) Filer | Form 20-F/A | |
| 09/09/2025 7:58 AM | CDT Environmental Technology Investment (1793895) Filer | Form 6-K Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934 | |