Complex sentence: President Paul Biya appointed him to the government as Minister of the Civil Service and the State Control in 1990; his portfolio was modified on 9 April 1992, when he was appointed as Minister of the Civil Service and Administrative Reform.
Split into simpler sentences: President Paul Biya appointed him to the government as Minister of the Civil Service and the State Control in 1990. Adji's ministerial portfolio was modified on 9 April 1992, when he was appointed as Minister of the Civil Service and Administrative Reform.