CDT Environmental Technology Investment Holdings Ltd

FY: Dec 31 2025

FY: Dec 31 2025

FY: Dec 31 2024

FY: Dec 31 2024

FY: Dec 31 2024

FY: Dec 31 2023

FY: Dec 31 2023

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Report of foreign private issuer pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934

Prospectus Supplement for Primary Offering

Notice of Effectiveness

Registration statement for securities of certain foreign private issuers

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Certification of approval for listing and registration on a national securities exchange

Prospectus Supplement with Pricing Information

Registration of Securities on Exchange

Notice of Effectiveness

Registration statement for securities of certain foreign private issuers (amendment)

Registration statement for securities of certain foreign private issuers (amendment)

Registration statement for securities of certain foreign private issuers (amendment)

Free Writing Prospectus

Registration statement for securities of certain foreign private issuers (amendment)

Registration statement for securities of certain foreign private issuers (amendment)

Registration statement for securities of certain foreign private issuers (amendment)

Registration statement for securities of certain foreign private issuers (amendment)

Registration statement for securities of certain foreign private issuers (amendment)

Registration statement for securities of certain foreign private issuers (amendment)

Registration statement for securities of certain foreign private issuers (amendment)

Registration statement for securities of certain foreign private issuers (amendment)

HRT FINANCIAL LP

HRT FINANCIAL LP

JANE STREET GROUP, LLC

Wang Tiefeng

Zuhong Xiong

Cui Lijun

Kai Ling

Xi Chen

Dongming Zhang

Yaohui Wang

Yunwu Li

SCHULMAN HARRY D

LUOJIA HOLDINGS LTD

Venture Million Ltd

CDT ENVIRONMENTAL TECHNOLOGY HOLDINGS LTD

Correspondence with the SEC

Letter from the SEC

Draft registration statement (confidential submission)

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC