From 2019 to July 2022, Tewet worked with Bombardier Transportation (currently taken over by Alstom - an international  French rolling stock manufacturer) in MRT Line 3 located in Metro Manila, Philippines (13 stops from North Avenue to Taft Avenue).

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Tewet provided MRT-3's first Signalling Upgrade Installation, Test and Commissioning including Maintenance after more than 2 decades of operation.