Mimosa is a platinum miner.
Platinum is one of earth’s rarest metals. It belongs to a group of metals known as Platinum Group of metals (PGMs), which consists of seven elements platinum, palladium, rhodium, gold, iridium, ruthenium, osmium; and is associated with the following base metals, nickel, copper and cobalt. PGMs have a wide variety of uses including principally auto catalysts and jewelry, as well as fuel cells, glass and other industrial uses. PGMs are used in petroleum refining.
Platinum is one of earth’s rarest metals. It belongs to a group of metals known as Platinum Group of metals (PGMs), which consists of seven elements platinum, palladium, rhodium, gold, iridium, ruthenium, osmium; and is associated with the following base metals, nickel, copper and cobalt. PGMs have a wide variety of uses including principally auto catalysts and jewelry, as well as fuel cells, glass and other industrial uses. PGMs are used in petroleum refining.
Minerals Marketing Corporation of Zimbabwe (MMCZ) is the sole marketing agent for the platinum bearing products (concentrate, matte and refinery). Mimosa produces PGMs concentrate and MMCZ sells it to toll smelters on their behalf. The PGMs are thus sold on world market via this process.
The total labour force at Mimosa is 1 651 including contractors. Of this, 1518 are full time employees.
Mimosa Mining Company is committed to sustainable economic development. As a business in the extractive industries sector, Mimosa works in line with Government policies regarding responsible and ecologically friendly-business practices, as well as paying particular attention to guidelines and policies outlined by the Environmental Management Agency (EMA). The company also takes cognisance of international standards on business ethics, socially and environmentally balanced development and practices. This guarantees sustainable future development, growth and earnings. Implementation of ISO14001 Environmental Standard has shaped the Mimosa intervention on environmental programs. We have partnered with other stakeholders in ensuring environmental sustainability through reversing the loss of environmental resources, in line with the millennium development goal on environment.
Every new Mimosa employee goes through basic environmental awareness training for two full days, and they are re-trained again after 3years. Every year the company celebrates the National Tree Planting Day, involving the employees and surrounding communities. Mimosa has gone beyond day commemorations on the tree planting and has partnered with Friends of the Environment in starting a nursery at one of the schools built by Mimosa.
Our main goal is to minimise consumption of raw water in core processes, and to achieve zero discharge into the environment through re-use of all effluent generated through various mining operations.   Raw water used in the milling process is recovered from thickeners and re-used in the milling process. Water in tailings waste is drained through penstocks into two return water dams before pumping back to plant process for re-use-40% of water used for plant processing is pumped from tailings return water dams. Water used during cleaning of machinery on both surface and underground workshops/ garages is drained into oil/water separators, where oil is recovered weekly and clean effluent is re-used again. Water used underground for drilling operations is drained into several underground sumps and pumped back to surface tanks after use of removal of sediments before using it again. When diluted with fresh water, the dirty water is discharged into plant reservoir for reuse. Water from cleaning structures at the crushing plant is contained in sumps to allow sediments to settle before pumping back to plant process for re-use.
Solar water heating systems were installed on 261 employee houses. Future plans are to consider usage of energy efficient equipment which cannot be introduced as retro profits on the current existing core operations. Purchase of energy efficient products/technologies shall also be guided through policies and procedures in-line with usage of cleaner technologies.
We strive to reduce; reuse and sell scrap waste materials to licensed buyers e.g. scrap metal, tin cans, rubber tyres and plastics. We practice the cradle to grave principle on waste management to ensure scrap dealers do not pollute the environment when handling our scrap material, through conducting quarterly audits of scrap dealers’ operations and sharing ideas for continuous improvement. We have entered into a contractual agreement with scrap dealers who won scrap recycling tenders to ensure environmental commitments are clearly spelt out and agreed upon.