*Amendment 002 is required to extend the bid submission deadline and to add document entitled 9F030-21-0453-B - Mechanical specifications 3 (MEC-002)**Amendment 001 is required to extend the bid submission deadline*This bid solicitation cancels and supersedes previous bid solicitation number 9F030-21-0453 dated May 24, 2022 with a closing of June 17, 2022 at 10:00 EDT. A debriefing or feedback session will be provided upon request to bidders/offerors/suppliers who bid on the previous solicitation. ***The Canadian Space Agency requires the services of a contractor, qualified to practise and holding a Quebec permit, to provide the necessary services in order to inspect and clean Heating, Ventilation and Air Conditioning (HVAC) systems duct at the John H. Chapman Centre. *Optional site visit* On July 13, 2022 at 10:00 am at the Canadian Space Agency (CSA) (6767 route de l’Aéroport, Saint-Hubert Québec J3Y 8Y9).Bidders must communicate with the Contracting Authority no later than July 8 2022 at 2:00 pm to confirm attendance.