The Société Tunisienne de Produit Agricole (STPA), located in Béja, is a key commercial company serving the regional agricultural sector. It specializes in the sale and distribution of a comprehensive range of agricultural inputs, including fertilizers and crop protection treatments. In addition to its core farming services, the company provides agricultural machinery and equipment, tires, and lubricants, while also operating a vehicle repair workshop. [1, 2, 3]