Orion imports most of its raw materials. The company applies a systematic quality assurance method to its suppliers regardless of their country of residence.

The suppliers of all pharmaceutical ingredients and other raw materials are audited. Orion makes on-site visits to evaluate the quality of the supplier’s performance and products. The production procedures of pharmaceutical ingredients are carefully examined to ensure that they meet the official and Orion's own standards. If the quality criteria are met, Orion gives the company a quality classification and it may become Orion’s supplier.

Orion constantly monitors the quality of its supplier’s products and practices and conducts also regular on-site evaluations to ensure that the company continues to meet Orion’s criteria and complies with the generally adopted practices of the industry.