Recently, the first two trains for Bogotá's first metro line, Line 1, officially rolled off the assembly line and were delivered. As the sole supplier of clock synchronization products and solutions for the line, Seth's high-precision #clock systems# are being exported with these "Chinese trains."
01 Bogotá Metro, a Model of Sino-Colombian Cooperation
On June 24, 2025, the first two trains for Bogotá Line 1, the largest single-unit transportation infrastructure PPP project in Latin America and the Colombian capital's first metro line, officially rolled off the assembly line and were delivered in Changchun, China, sparking enthusiastic responses in Colombia.
Bogotá Mayor Galan attended the delivery ceremony virtually, praising it as a "milestone" in realizing the city's over 80-year-long "metro dream." Over ten mainstream Colombian media outlets focused on the report, highlighting the trains' technical highlights and safety performance, and praising "Chinese speed" and "Chinese technology."
As the sole supplier of time synchronization products and solutions for the Bogotá Metro, Saisi's independently developed and designed high-precision clock system will officially be shipped overseas, providing a precise "China time" benchmark for this critical South American metro line.
This project marks another breakthrough for Saisi in the Latin American market, following its service on rail transit projects in numerous countries across Asia, Africa, and Europe. This not only represents a high degree of international recognition of Saisi's technological strength and product reliability, but also demonstrates the strength and commitment of Saisi's time and frequency synchronization technology within the global rail transit sector.
02 Saisi's Clock System Goes Global with Trains
The efficient and safe operation of modern rail transit relies on precise time synchronization. As the "nerve center" for train dispatching, signal control, passenger information services, and the coordinated operation of the entire system, a unified and reliable time benchmark is crucial.
As a leading Chinese company in the high-end time and frequency field, Saisi leverages its deep technical expertise in time and frequency and extensive global rail transit project experience to tailor a high-precision, highly reliable dedicated rail transit clock system (also known as a master-slave clock system) specifically for the Bogotá Metro project.
The system utilizes a BeiDou-3/GPS dual-mode satellite timing engine and, through network protocols such as NTP/PTP, achieves millisecond-level time synchronization accuracy across all key nodes along the entire line, including control centers, stations, depots, and running trains.
As these trains, carrying Chinese technology and China-Colombia friendship, journey to South America, the citizens of Bogotá are one step closer to experiencing safe, efficient, and convenient metro service.
03 Global Expansion: Saisi Embarks on a New Chapter of Overseas Expansion
Based in China, with a global presence. This international expansion with the "China Train" is the result of Saisi's strategic commitment to deepening its presence in the international market. From Mexico Metro Line 1, one of the world's top ten PPP cases, to Africa's first electrified railway, the Jakarta-Bandung High-Speed Railway, a benchmark for high-speed rail in Southeast Asia, to Bogotá's smart rail transit, SYSTEM clock systems have illuminated rail transit networks on six continents.
Looking to the future, CESI will take technological innovation as its fundamental driving force, and use more advanced time and frequency technologies to explore and develop new scenarios, new fields, and new markets, accelerate the transformation of scientific and technological achievements into real productivity, and inject "CESI precision" into the world's rail transit network.
