The core activity of Wilhelmsen encompasses three main areas: 1. **Maritime Services**: The company offers maritime products and services, including ship supply, safety products, insurance, chemicals, and ship management. 2. **New Energy**: Wilhelmsen invests in companies focusing on renewable energy, particularly offshore wind, and develops digital solutions for the maritime industry. 3. **Strategic Holdings and Investments**: The company holds shares in other companies, including Wallenius Wilhelmsen, Hyundai Glovis, and a military logistics company. Overall, Wilhelmsen focuses on the maritime industry, offering a wide range of products and services that span from traditional ship supply to innovative solutions for the energy transition.