Former Senator Antonio Trillanes IV has intensified his anti-corruption campaign, lodging a plunder and graft complaint against former President Rodrigo Duterte and Senator Christopher “Bong” Go over the alleged anomalous funneling of nearly P7 billion worth of government infrastructure projects to firms owned by the senator’s family.
Filed before the Office of the Ombudsman on Tuesday morning, the complaint also names Go’s father and brother, who own CLTG Builders and Alfrego Builders, respectively, as respondents. Trillanes asserts that the alleged corrupt acts, which involve over 200 projects, primarily in the Davao Region, began during Duterte’s tenure as Davao City mayor and continued throughout his presidency.
The former lawmaker accused the two officials of violating the Plunder Law (Republic Act No. 7080), the Anti-Graft and Corrupt Practices Act (Republic Act No. 3019), and the Code of Conduct and Ethical Standards for Public Officials and Employees (Republic Act No. 6713). Trillanes argued that Go was the “central figure” who allegedly orchestrated the scheme, leveraging his close relationship with Duterte, who, as the approving authority, acted as the “enabler.”
The complaint highlights that CLTG Builders and Alfrego Builders cornered approximately P6.95 billion in government infrastructure projects, with a significant portion allegedly secured through a joint venture. Specifically, over P816 million in contracts were reportedly obtained through a joint venture between CLTG Builders and St. Gerrard Construction, a firm owned by the Discaya family, who are currently under scrutiny for their alleged involvement in other flood-control corruption anomalies.
Ngayong araw na ito, ako po ay nagsampa ng kasong plunder sa Ombudsman laban kina duterte at Bong Go dahil sa maanomalyang Php7 bilyong infrastructure projects na inaward sa CLTG at Alfrego Builders na pagmamay-ari ng tatay at kapatid ni Bong Go. Ilan sa mga kontratang ito ay… pic.twitter.com/adAMem0EYj
— Sonny Trillanes IV (@TrillanesSonny) October 21, 2025
Senator Go has since dismissed the allegations as “baseless” and “recycled,” insisting he had no involvement in his family’s businesses and challenging Trillanes to pursue the “real culprits” behind ongoing flood-control scandals. The filing marks a renewed effort by Trillanes to pursue accountability from the previous administration, now under the current Ombudsman leadership. The Ombudsman is expected to review the comprehensive 35-page complaint to determine if probable cause exists to proceed with a formal investigation.