The ruling African National Congress is preparing to make a fresh attempt to dump Mr. Zuma at a national executive meeting on Monday afternoon. If he refuses, the matter could go to parliament for a possible motion of no confidence or impeachment proceedings.
The South African Mint, a subsidiary of the SARB, will also issue a new five rand coin celebrating Mandela's centenary.
In a speech which also marked 28 years to the day since Mandela was released from an apartheid-era prison, Ramaphosa said the talks on Zuma's future should be handled in an orderly, purposeful manner, "in Madiba's way of doing things", - using Mandela's clan name.
It was in that same vast square in front of City Hall on February 11, 1990, that Nelson Mandela spoke to euphoric crowds hours after his release from prison.More news: Unilever Threatens to Pull Ads from Google, Facebook "Swamp"
But he is not legally obliged to step down if they ask him to.
Before Ramaphosa spoke, representatives from Cosatu and the SACP delivered messages of support to the ANC and called for Zuma's removal.
The Democratic Alliance, the biggest opposition party, referred to unconfirmed media reports that Zuma demanded a state security detail for himself and his family as well as payment by the state of his legal fees.
Ramaphosa, 65, was elected ANC president in December 2017 and is now most likely to become the country's next president.
"Nelson Mandela represented the best version of ourselves as South Africans", SARB governor Lesetja Kganyago said.More news: Australia captain Smith wins second Allan Border medal
"We have no other choice but to continue fighting corruption" Ramaphosa said.
However, the ruling ANC under President Jacob Zuma has faced massive criticism over alleged incidents of corruption and misrule.
The last meeting the ANC top six had with Zuma last weekend, Zuma refused to resign.
What has Mr Zuma done wrong?Whatever leverage Russian Federation may have, it is safe to assume it exists to realise a return on all the efforts made thus far and that this is why President Jacob Zuma has more than likely insisted on the implementation of the nuclear deal as a condition for agreeing to quit. Mr. Zuma, who is facing a number of charges and inquiries, has used the courts to delay proceedings against him.
"As leadership of the ANC we are now engaged in discussions around the transition to a new administration and specifically to resolve the issues of the position of the president of the Republic", Ramaphosa said.More news: Winter Olympics opening ceremony sees Intel use record 1218 drones
If Zuma does not resign, he could be ousted via a parliamentary vote of no-confidence within days.
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