The line is 1.8 km (1.1 mi) long, consisting of 3 stations,[2] and was opened by Thai Prime Minister Prayut Chan-o-cha on 16 December 2020.

The Gold Line is operated by Bangkok Mass Transit System Public Company Limited (BTSC) under a 30-year contract.

Design and development of the line was the responsibility of Krungthep Thanakom PCL, an enterprise of the Bangkok Metropolitan Administration.

[9] All advertising revenue and operating profits will be collected by Siam Piwat Company during the 30 year concession period.

[17] During the free fare period for the first month of operations in January 2021, the line was averaging between 5000 and 6000 daily passengers with 3000 using Iconsiam station.

[17] During the free fare period for the first month of operations in January 2021, the line was averaging between 5000 and 6000 daily passengers with 3000 using Iconsiam station.

This measure aims to address the worsening air pollution caused by surging dust levels across all districts of the capital.