Frontier Services Group (FSG) is a Chinese partially state-owned Africa-focused security, aviation, and logistics company founded and led until April 2021 by Erik Prince, the former head of Blackwater Worldwide.

Frontier Services Group was reported to be paid $23.3 million by South Sudan's Ministry of Petroleum to transport supplies and perform maintenance on oil production facilities.

In 2014, Prince commissioned the company to modify Thrush 510G crop-dusters with surveillance equipment, machine guns, armor, and other weapons, including custom pylons that could mount either NATO or Russian ballistics.

[14] One of the modified crop-dusters was delivered to Salva Kiir Mayardit's forces in South Sudan shortly before a contract with Frontier Services Group was cancelled.

Frontier Services Group owns two of the modified Thrush 510Gs, but since executives learned the craft had been weaponized by Prince, the company has declined to sell or use the aircraft to avoid violating U.S. export controls.

[15] In December 2016, FSG announced its plans to set up a “forward operating base” in Yunnan to provide logistics and unarmed security training services to facilitate One Belt, One Road-related projects in Southeast Asia.

[22][23] In June 2023, the United States Department of Commerce added Frontier Services Group to the Bureau of Industry and Security's Entity List due to its training and support of the People's Liberation Army.