The National Anti-Corruption Commission (NACC) has resolved to file criminal charges against Rojana and Kriang Kalptinan for collusive bidding on 26 road projects in Ubon Ratchathani worth 43 million baht, benefiting companies linked to relatives. The commission decided to forward the case to the Attorney General for prosecution and further action.
On 9 July 2026, the National Anti-Corruption Commission (NACC) resolved to file charges against Mrs. Rojana Kalptinan, former mayor of Ubon Ratchathani City, and associates for dividing contracts for road surface improvement and expansion projects in fiscal year 2006, totaling 43.221 million baht. The contracts were split into 26 projects, each not exceeding 2 million baht, to avoid competitive bidding and to benefit certain private companies.
The investigation found that Kriang Kalptinan, then Mrs. Rojana's husband, played a role in directing the contract splitting and interfering with municipal operations. He arranged for companies linked to relatives and close associates to receive contracts, including prearranging bidders and competitors before Mrs. Rojana signed off on the contracts.
The NACC also found that payments from several projects were transferred to individuals connected to Kriang, Rojana, and their relatives. For the 11 projects procured through electronic auctions (e-Auction), no criminal evidence was found, though some municipal officials were found to have committed minor disciplinary offenses.
The NACC commissioners resolved to file charges against Mrs. Rojana Kalptinan, former mayor of Ubon Ratchathani City, along with Mr. Pongsak Moolsarn and others involved, for criminal offenses including abuse of official power, violations of laws governing bidding for state agencies, and breaches of municipal laws.
In addition, the NACC found several business operators and partnership executives guilty of supporting the offenses. Charges were also filed against former MP Kriang Kalptinan and Senator Kan Kalptinan as both supporters and co-perpetrators under related laws.
Some officials were charged with minor disciplinary offenses, while certain legal entities were dismissed from the case due to loss of legal status. For other accused individuals, the NACC found insufficient evidence and dropped the charges.
The NACC will forward the case file and recommendations to the Attorney General to prosecute before the Supreme Court's Criminal Division for Political Office Holders. It will also notify the Election Commission and relevant agencies to take disciplinary action according to the law.