WUHAN - Authorities in central China's Hubei province are mulling whether to "add height" to a building project, a move that would make it the tallest building in China upon its completion, Wuhan-based contractor Greenland Construction Group said Monday.

The Wuhan municipal government initiated the adjustment plan in order to bring about a landmark building, according to a spokesman with the company.

The Eco Tower Wuhan Center was originally designed to rise approximately 606 meters (1,818 ft) and house 119 stories, with a total floor area of around 3 million square meters. Based on initial plans, it would be the second-tallest building in China upon its completion in 2017.

The adjustment may require its height to surpass that of the 632-meter Shanghai Tower, which is currently being constructed as the country's tallest building.

The feasibility report on the possible changes to the initial plan is under further discussion, and the final decision has yet to be disclosed.

The foundation for the building will be completed along China's Yangtze River belt in 2012, and construction has progressed smoothly since it began in 2010.

Designed by Adrian Smith + Gordon Gill Architecture, the building will include a five-star hotel, an atrium featuring 360-degree views of the city and office buildings.