Saudi Binladin Group (SBG) has awarded Beijing-headquartered Jangho Group a facade works contract on what will be the world’s tallest tower – the 1,000-metre-plus Jeddah Tower in Saudi Arabia.

Jangho Group will provide engineering design and technical services for the project’s structural glass and adhesive curtain walls.

The announcement comes after the client, Jeddah Economic Company (JEC), signed an estimated SR8bn ($2.1bn) contract with SBG to resume construction work on the project.

When completed, Jeddah Tower will be more than 172 metres taller than the 828-metre-tall Burj Khalifa, the world’s tallest building since 2009.

Jeddah Tower’s superstructure is about one-third complete, with 63 floors out of a total of 157. SBG was the main contractor on the project in the early and mid-2010s. Germany’s Bauer completed the tower’s piling work.

The architect is US-based Adrian Smith & Gordon Gill, and the engineering consultant is Lebanon’s Dar Al-Handasah (Shair & Partners).

Jeddah Tower is the centrepiece of the Jeddah Economic City development. The project’s first phase, which includes the main tower, covers an area of 1.5 million square metres.