Alan F. Hauff has been appointed assistant general manager for marine repair at St. Louis Ship, it was announced by Edward Renshaw, president.

Mr. Hauff will direct all aspects of marine repair work at the St. Louis yard, including development of new business, customer service, estimating and bidding, and management and direction of the river repair effort.

Mr. Hauff returns to St. Louis Ship from Riverway Shipyard, Grafton, Ill., where he was general manager for the past three years.

St. Louis Ship is a division of Pott Industries Inc., a subsidiary of Houston Natural Gas Corporation.