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Duterte's brother set to testify in VP impeachment trial

Davao City Mayor Sebastian Duterte is expected to take the witness stand on Tuesday as Vice President Sara Duterte's impeachment trial enters its 31st day. His testimony will reportedly focus on government transactions between Davao City and GenCorp Industries Inc., a company the vice president has identified as a business interest.

LSN Philippines · 28 September 2026

MANILA – The impeachment trial of Vice President Sara Duterte is set to hear testimony from her brother, Davao City Mayor Sebastian "Baste" Duterte, as proceedings continue Tuesday.

Mayor Duterte's appearance marks a significant development in the ongoing case, which has now extended into its fourth week. His testimony is expected to center on transactions conducted between the Davao City government and GenCorp Industries Inc., a company previously disclosed by the vice president as part of her business interests.

The trial has seen escalating scrutiny of the vice president's financial dealings and business connections. The focus on transactions involving GenCorp Industries suggests investigators are examining the nature and scope of the company's relationship with government entities in the Davao region.

As a sitting local government official and family member of the respondent, Mayor Duterte's testimony carries particular weight in the proceedings. His account of the government-to-company transactions could provide insights into the scope and nature of the vice president's declared business interests.