(19) Concentration and Major Customers and Suppliers

For the three months ended March 31, 2025 and 2024, the Company had no single customer contributed over 10% of total sales.

For the three months ended March 31, 2025, the Company had two major suppliers accounted for 77% and 16% of total purchases. For the three months ended March 31, 2024, the Company had two major suppliers accounted for 75% and 15% of total purchases.