China has finished construction on the 5,111-kilometer Power-of-Siberia pipeline, a massive project connecting Russian gas fields to the financial hub of Shanghai. 

The state-run project was completed seven months ahead of schedule, Chinese state media reported Monday. 

The pipeline, which began operation in late 2019, is expected to reach its full annual capacity of 38 billion cubic meters in 2025, accounting for roughly 9% of China’s annual gas consumption.

The final 167-kilometer section of the pipeline, connecting Nantong to Luzhi in Jiangsu province, was added in mid-November. The pipeline boasts a diameter of 1.422 meters and an allowable pressure of 12 megapascals, making it the largest single-pipeline transport system of its kind.

According to state media, the pipeline is currently delivering 110 million cubic meters of gas per day, a significant increase from the initial 15 million cubic meters per day when it first began operations five years ago.

The accelerated completion of the Power-of-Siberia pipeline underscores China’s commitment to diversifying its energy sources and strengthening its energy security.