Thailand Decides to Buy Chinese Submarine Despite Previous Engine Issue

Thailand reverses course, opts to proceed with purchase of Chinese submarine despite earlier engine integration concerns, enhancing maritime capabilities amid regional tensions.

In a surprising development, Thailand has reversed its earlier decision to cancel the procurement of a Chinese attack submarine. Initially, the Thai Ministry of Defense decided in October 2023 to halt the acquisition of the S26T Yuan-class submarine due to the inability of China to integrate a German-made diesel engine. The issue arose because Germany did not permit the export of these submarine engines to China. Instead, China offered a Chinese-made CHD620 diesel engine, which the Thai government initially refused.

However, after a recent visit by Chinese military and shipbuilding personnel to Bangkok, the Thai defense ministry has decided to proceed with the purchase of the S26T submarine. This decision was made despite the previous opposition to the Chinese-made engine. The submarine will now be delivered with the CHD620 engine.

The decision to go ahead with the purchase is seen as a compromise. Thailand's troubled submarine program faces further challenges, with deliveries not expected until 2027. The CHD620 engine has not been used in any submarines, including those in China's fleet, so extensive testing in Thai waters is anticipated.

As part of the agreement, China will provide Thailand with a submarine simulator and necessary spare parts. Once delivered, the Yuan-class attack submarine will be Thailand’s first submarine in over sixty years, significantly enhancing its maritime capabilities.

Previously, Thailand planned to acquire three submarines for $1.05 billion but budget constraints reduced the number to one, costing $403 million.

The decision to proceed with the S26T purchase reflects Thailand's strategic interest in bolstering its naval strength, despite the challenges and delays associated with the Chinese engine. This move underscores the ongoing defense cooperation between Thailand and China, as well as Thailand's commitment to modernizing its military capabilities amidst regional maritime tensions.