Tecnoglass Inc.

During the three months ended March 31, 2026, no director or officer adopted orterminated any (i) “Rule 10b5-1 trading arrangement,” as defined in Item 408(a) of Regulation S-K intending to satisfy the affirmative defense conditions of Rule 10b5–1(c) or (ii) “non-Rule 10b5-1 trading arrangement,” as defined in Item 408(a) of Regulation S-K.

The Company has determined to hold its 2026 annual general meeting of shareholders (the “2026 Annual Meeting”) on June 16, 2026. Because the 2026 Annual Meeting date has advanced by more than 30 days from the anniversary date of the Company’s 2025 annual general meeting of shareholders (the “2025 Annual Meeting”), in accordance with Rule 14a-5(f) under the Securities Exchange Act of 1934, as amended, the Company is informing shareholders of such change.

In addition, because the 2026 Annual Meeting will be held more than 30 days from the anniversary date of the 2025 Annual Meeting, the deadline for submitting shareholder proposals for consideration at the 2026 Annual Meeting set forth in the Company’s 2025 Proxy Statement no longer applies. Accordingly, in order to be included in the proxy materials for the 2026 Annual Meeting, shareholders who intend to propose business for consideration at the 2026 Annual Meeting to be included in the Company’s proxy materials for the 2026 Annual Meeting (including a proposal made pursuant to Rule 14a-8 promulgated under the Securities Exchange Act of 1934, as amended, and any notice on Schedule 14N) must ensure that such proposal is received by the Company at its principal executive offices, Avenida Circunvalar a 100 mts de la Via 40, Barrio Las Flores, Barranquilla, Colombia, 080001, no later than 5:00 p.m., Eastern time, on May 11, 2026. Proponents are advised to submit their proposals by certified mail, return receipt requested, addressed to the Company’s Corporate Secretary. The May 11, 2026 deadline will also apply in determining whether notice of a shareholder proposal is timely for purposes of exercising discretionary voting authority with respect to proxies under Rule 14a-4(c) of the Exchange Act. The Company currently intends to make its proxy materials available to shareholders beginning on or about May 15, 2026.

Shareholder proposals intended to be considered for inclusion in the Company’s proxy materials for the 2026 Annual Meeting must comply with applicable Cayman Islands law, the rules and regulations promulgated by the Securities and Exchange Commission and the procedures set forth in the Company’s Amended and Restated Memorandum and Articles of Association.