SDM is a mixed Angolan public mining company and holds the mining rights in an area of concession of 2,950 km2, located in the hydrological basin of Cuango River, Lunda Norte Province.

Sociedade de Desenvolvimento Mineiro (SDM) is a Brazilian mining company founded in 1982. It is one of the largest mining companies in Brazil, and is responsible for the exploration and extraction of minerals, including iron ore, copper, gold and nickel. The company operates in several Brazilian states, including Minas Gerais, Pará, and Goiás, as well as in the Brazilian Amazon region.

SDM has a strong focus on sustainability, and is committed to protecting the environment and local communities. The company is committed to using modern and responsible mining practices, and has invested heavily in research and development to ensure that its operations are as efficient and safe as possible. SDM also works to ensure that local communities benefit from its operations, through job creation, training and education, and support for local businesses.

SDM is committed to providing a safe and secure work environment for its employees, and has implemented a strict safety and health policy. The company has also invested in the development of its workforce, providing training and education to ensure that its employees are equipped with the skills and knowledge required for the safe and efficient operation of its mining operations.

In addition to its mining operations, SDM is also involved in other activities, such as research and development, environmental protection and conservation, and social responsibility. The company works closely with local governments and communities to ensure that its operations are compliant with local regulations and to ensure that the environment is protected. SDM also works to ensure that the local communities benefit from its operations, providing employment and economic opportunities.