Rep. Pat Harrigan (R-N.C.) has called for a criminal investigation into GNC, the national supplement retailer owned by China's state-run Harbin Pharmaceutical Group. GNC operates more than 85 stores on U.S. military bases, including four stores at Fort Liberty in North Carolina.

Harrigan pointed to a report from national security firm Exiger revealing that GNC imported over 100 million pounds of ingredients from China while continuing to advertise that 96 percent of its products are made in the United States. The report also detailed GNC's use of a manufacturer that falsified customs declarations to evade tariffs, a 2023 ransomware attack that compromised sensitive data, and ongoing cybersecurity vulnerabilities.