Exhibit 99.1

Introductory Statement

This Amendment No. 1 (this “Amendment”) amends the Schedule 13D originally filed by the Reporting Persons with the Securities and Exchange Commission (the “SEC”) on November 19, 2024 (the “Schedule 13D”), with respect to the Common Stock, $0.001 par value (the “Shares”), of LiqTech International, Inc., a Nevada corporation (the "Issuer"). Except as otherwise provided herein, each item of the Schedule 13D remains unchanged. Capitalized terms used herein but not otherwise defined shall have the meaning set forth in the Schedule 13D.

EXHIBIT 99.2

JOINT FILING AGREEMENT

THIS JOINT FILING AGREEMENT is entered into as of March 21, 2025, by and among the parties hereto. The undersigned hereby agree that the Statement on Schedule 13D with respect to the Common Stock, $0.001 par value, of LiqTech International, Inc., a Nevada corporation, and any amendment thereafter signed by each of the undersigned shall be (unless otherwise determined by the undersigned) filed on behalf of each of the undersigned pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.

Date: March 21, 2025

Bleichroeder LP

Bleichroeder Holdings LLC

Andrew Gundlach