Sigma Pharmaceuticals Limited is engaged in the manufacturing, marketing and wholesale distribution of pharmaceutical products through the pharmacy and grocery channels and the provision of services to retail pharmacists.

The Company operates in three business segments: pharmaceuticals, healthcare and corporate. The pharmaceuticals segment includes contract manufacture for Australian and overseas pharmaceutical companies, and the manufacturing, selling and marketing of Sigma, Arrow, Herron and other pharmaceutical products.

The healthcare segment includes wholesale and distribution to pharmacy of prescription and over the counter products, management of banner groups and the development and provision of private label products.

The corporate segment includes corporate head office costs and all items associated with the New Zealand operations. In 2008 the Company completed the acquisition of Orphan Holdings Pty Limited.