[8] In August 2020, they entered an agreement to purchase all of Lucara’s large stones (10.8 carats and up) and, in 2022, they signed a ten-year contract.

[11] In 2022, the company partnered with Microsoft to verify and track mined gems; all data about their trajectory is stored on a blockchain.

[12] Later that year it partnered with engineering company Comate to devise mini safes in which diamonds are stored and tracked.

[13] In September 2022, during the United Nations General Assembly, Botswana president Mokgweetsi Masisi referred to the government's arrangement with the HB Antwerp as a model for other African countries.

[13] He also pointed to the agreement during his negotiations with diamond corporation De Beers,[14][15] threatening to end the partnership if new terms weren't agreed upon.