Isariya Paireepairit failed the primary vote in Chonburi because his views on labor protection do not align with the Prachachon Party.
On 21 Dec 2025 GMT+7, reporters reported that the Prachachon Party in Chonburi held a membership meeting to conduct primary voting to endorse 10 constituency candidates for Chonburi province. The endorsed candidates are: 1. Mr. Worath Sirirak, candidate for constituency 1; 2. Ms. Wannida Naphasit, candidate for constituency 2; 3. Mr. Chawal Phlomdee, candidate for constituency 3; 4. Ms. Napatsawan Maneeratroj, candidate for constituency 4; 5. Mr. Narongkornthorn Phomuen, candidate for constituency 5; 6. Ms. Narumas Piambandit, candidate for constituency 6; 7. Mr. Sahasawat Khumkong, candidate for constituency 7; 8. Ms. Manaswin Jancharoen, candidate for constituency 8; 9. Mr. Yodchai Phuengporn, candidate for constituency 9; and 10. Mr. Thanatharn Pramulphong, candidate for constituency 10.
Additionally, the Prachachon Party members in Chonburi voted to endorse 100 party-list candidates. One candidate, Isariya Paireepairit, former Chief Operating Officer of Line Man Wongnai and a party-list candidate, failed the primary vote. Members cited reasons including his failure to fulfill promises regarding rider professions, his attitudes and definitions of employees that do not align with the Prachachon Party, and issues concerning labor protection.
The primary voting process to endorse 100 party-list candidates will take place across 76 provinces. The endorsed names from each province will be compiled and submitted to the Prachachon Party's central committee for consideration to rank the party-list candidates and to determine who will be officially approved by party members.