(Bloomberg) -- South Africa has asked companies to help it set up an office to facilitate the entry of private operators onto the continent’s biggest rail network for the first time. Most Read from BloombergTrumpism Is Emptying ChurchesRBC Fires CFO Ahn After Probe Into Personal RelationshipThe Odds of $100 Oil Are Rising as Supply Shocks Convulse the MarketIsrael Backs Out of Khan Younis to Prepare ‘Future Operations’Saudis Scale Back Ambition for $1.5 Trillion Desert Project NeomIn a letter se