The company confirmed the deal to the Stock Exchange of Thailand on Monday through its subsidiary, SR Commercial Holdings.
SR will hold 63.99 per cent in CAPS Co Ltd, which will manage the car park.
In line with its business plan, SR Commercial Holdings will increase its registered capital by issuing 6.4 million new shares.
It expects to raise new capital of Bt82 to Bt146 million to invest in this project, the company said.