South Africa: How are the transfer of skills enforced for holders of an Intra-Company-Transfer (ICT) visa?

South Africa: How are the transfer of skills enforced for holders of an Intra-Company-Transfer (ICT) visa? Recently, we noticed a potential new administrative practise whereby proof that skills were actually transferred by the ICT holder to a nominated South African citizen, has been requested by a number of South African missions. This has important implications for the HR department of corporates, as well as applicants for, and holders of an ICT visa, who wish to change their status.