The southern African nation has the second largest platinum deposits after South Africa.
Zimbabwe Mining News
A South African newspaper reported that the owner of the company is considering selling the operations.
The mine would be built on one of the largest platinum mining concessions in the country.
Zimbabwe may withdraw mining rights from companies that take too long to dig for minerals.
The company is sufficiently confident Zimbabwe will recover from its problems to re-invest on a modest scale.
On the upside, the RNI report shows that 24 nations have seen improvements in their index performance.
Alrosa will assess Zimbabwe's diamond reserves over the next six months but would only start mining if it can take a majority stake in such a project.
Foreign platinum and diamond miners have been restricted to only 49 percent ownership of their Zimbabwe operations by the black economic empowerment law.
Zimbabwe holds the world’s second-largest known reserves of platinum-group metals after South Africa, plus substantial deposits of gold, diamonds, lithium, iron ore, coal, chrome and nickel.
Zimbabwe's secretary in the ministry of foreign affairs was quoted as saying Botswana had offered to lend Zimbabwe $500 million to support its diamond industry.
Zimbabwe's diamond sector has struggled since the government kicked out private companies from the eastern Marange fields.
The government declared the accident a disaster.
The miners were trapped on Tuesday night when the shafts they were working in were flooded after a nearby dam burst.
Small-scale gold producers, including illegal miners, accounted for nearly 60 percent of the record 33 tonnes of gold produced in Zimbabwe last year.
RioZim said since December, it had experienced "significant and persistent" delays in dollar payments, affecting its viability.
"At the end of the day it is an issue of balancing the needs of investors with the needs of the country"
World’s top diamond producer by output Alrosa and China-owned Anjin are the two foreign companies chosen by Zimbabwe's government to partner the state-diamond miner in exploring and digging up diamonds.
The world’s top diamond producer by output, is returning to Zimbabwe after almost two years, as the company continues to expand beyond Russia.
The state-owned diamond miner wants to produce 10 million carats by 2025.
It would make them the first listed companies to mine there in that sector for two years, Mining Minister said.
President Emmerson Mnangagwa is making moves to end the country’s international isolation and attract foreign investment to boost an economy in tatters, including allowing new private investment in the diamond fields.
It may even allow foreign investors to hold majority stakes in local operations on condition that part of their output is reserved for domestic downstream industries.
Minister of Mines and Mining Development, Winston Chitando told Reuters there would be "no change" for diamonds and platinum when asked about industry speculation the indigenisation rules could be relaxed further.
Zimbabwean Finance Minister Mthuli Ncube cut civil servants’ pay and announced a series of other steps to reduce the government’s bloated wage bill.
The Zimbabwean miner claims it has failed to receive $48m due in payments from the central bank for its sales in dollars, suffering losses of $44m due to lost production.