Mr. Prasit Deejongcharoen, Chief of the Chong Chom Customs House, revealed the 'Blocking Express Cancer' operation conducted on July 3, 2026. In collaboration with the Nakhon Ratchasima Postal Center, over 50 officers were deployed over 11 days and 10 nights to intercept illegal cigarettes arriving from various sources intended for distribution across three densely populated provinces in the lower Northeast: Nakhon Ratchasima, Buriram, and Surin.