The Economic Cooperation Organization (ECO) Secretariat invites sealed bids from qualified contractors to replace old windows and renovate restrooms at its building located in Tehran, № 1, Golbu Alley, South Kamranieh Street. Interested bidders may visit the ECO Secretariat to submit their bids daily, except Fridays and Saturdays, from 9:00 AM to 14:00 until December 3, 2024.
