Joint venture between De Beers and Government of Republic of Namibia announces new plan, supporting economic, commercial, employment and community benefit, following receipt of royalty relief Namdeb Diamond Corporation (Proprietary) Limited (‘Namdeb’), a 50:50 joint venture between De Beers Group and the Government of the Republic of Namibia, today announced the approval of a new long-term business plan that will extend the current life of mine for Namibia’s land-based operations as far as 2042.