Prime Minister Pieter W. Botha named two members of the moderate wing of the ruling National Party to the sensitive Cabinet posts of black affairs and black education.

Piet Koornhof, generally credited with pushing through changes that led to the beginnings of multiracial sport, was named minister of black affairs, and Punt Janson was given the black education portfolio.

The moves were part of a Cabinet reshuffle necessitatec by the resignation a week ago of Connie Mulder as minister of black affairs in the light of charges of corruptions in the Department of Information, which he used to head.

Notably missing among the names of those promoted was Andries Treurnicht, regarded as an ultraconservative who has considerable support in party circles. This is likely to been as a signal from Botha to party regulars that Treurnicht would not be a convenient choice to replace Mulder as head of the party's powerful Transvaal delegation.

The announcement also appears to dampen speculation that Mulder could make a political comeback if a judicial inquiry clears him of any wrongdoing in the Information scandal.

In another development, Botha denied that South Africa intended to attack Angola from neighboring Namibia (Southwest Africa), where South African troops are stationed. Angola has made several recent charges alleging South African plans to attack.