The Bhumjaithai Party opened candidate registration for MPs on the second day. The son of Mayor Chan applied for the Pathum Thani MP seat, along with major groups including Santi Promphat, Chandrasurin, Rattanaset, Ratchakijprakarn, Krut Khunthot, and Sinthuprai.
On 16 Dec 2025 GMT+7, the Bhumjaithai Party began its second day of candidate registration for the House of Representatives election. Former MPs and political groups arrived continuously to register, including the group of Mr. Pinit Chandrasurin registering for the party-list MP seats, accompanied by his son and daughter-in-law: Mr. Chawanit Chandrasurin for Lampang Constituency 1, Mr. Sriprom Homyok for Lampang Constituency 2, Mr. Charasrit Chandrasurin for Lampang Constituency 3, and Mrs. Phumra Chandrasurin for Lampang Constituency 4. In Lamphun Province, Mr. Yutthapong Chaisorn registered for Constituency 1 and Mr. Sirsak Thongyod for Constituency 2.
Mr. Santi Promphat, accompanied by his son Mr. Patthana Promphat, registered as party-list MP candidates, along with Mr. Pongsakorn Arnanopporn and Ms. Panrasri Krut Khunthot.
Meanwhile, Ms. Chidchanok Puangpetch, daughter of Mayor Chan Puangpetch, registered as a candidate for Pathum Thani Constituency 2. She teamed up with Mr. Manatsanan Leenawarat, son of Mayor Biao, and Mr. Krisda Leenawarat, mayor of Thanyaburi municipality, who also registered under the Bhumjaithai Party.
Additionally, former Palang Pracharath MPs from Phetchabun registered under Bhumjaithai: Ms. Pimporn Pornpruetiphan for Constituency 1, Mr. Yupharat Buain for Constituency 2, Mr. Boonchai Kittitharasap for Constituency 3, Mr. Worachot Sukonkajorn for Constituency 4, Ms. Wanpen Promphat for Constituency 5, and Mr. Akkara Thongjaisod for Constituency 6.
The Rattanaset family nominated their sons for Nakhon Ratchasima MP seats: Mr. Tawirat Rattanaset for Constituency 5 and Mr. Tatirat Rattanaset for Constituency 16.
Mr. Prasat Tanprasert, a former MP from the Chart Pattana Party, shifted to register as an MP candidate for Nakhon Sawan Constituency 6 under Bhumjaithai.
In Buriram Province, Ms. Natthida Lekudakorn registered for Constituency 2.
In Roi Et Province, Mr. Chaiwut Iamrasmikul registered for Constituency 5, Mr. Sakda Kongphet for Constituency 7, and Mr. Thanachai Sinthuprai for Constituency 8.
In Kalasin Province, Mr. Therdpaendinthong Tharachai registered for Constituency 1 and Ms. Wanpen Settharuksa for Constituency 2.
In Satun Province Constituency 1, Mr. Peeraphat Ratchakijprakarn, son of Mr. Piboon Ratchakijprakarn, moved up to register as a party-list candidate.