It is understood that the venue, which has hosted the Chinese F1 round since 2004, was unable to maintain its circuit certification due to the impacts of the COVID-19 pandemic.
The previous licence was held for a three-year term but expired at the end of 2019, shortly before the global health crisis prevented FIA representatives from travelling to complete their inspection.
But circuit manager Juss Sports has now reported that, commencing last year, remedial and maintenance work has been carried out around the circuit.
Fixes for the blemishes in the track surface, the partial repair of tyres walls plus the repainting of the underground connecting tunnel, refreshing of the grandstand seats and improvements to the outfield area have been undertaken.
This effort followed an assessment by the Federation of Automobile and Motorcycle Sports of China (CAMF) in August 2022.
The repair work has resulted in Shanghai being reinstated with another three-year FIA Grade One licence, the only level that allows a track to host F1 races and tests.
The circuit is, therefore, the sole track in China currently capable of hosting grand prix.
Source: Autosport