WELLINGTON, New Zealand--Infant formula and milk-marketing company a2 Milk said it has appointed clothing industry executive David Bortolussi as chief executive.

Mr. Bortolussi, who is group president of international innerwear at American clothing company HanesBrands Inc., will start in early 2021, a2 Milk Company Ltd. said Tuesday.

A2 Milk's previous CEO, Jayne Hrdlicka, resigned unexpectedly in December after a short tenure.

The New Zealand- and Australian-listed company said Mr. Bortolussi will be paid a base annual salary of 1.75 million Australian dollars ($1.3 million) as well as short- and long-term incentives.

He will also recieve one-time cash payments and share rights valued at A$3.97 million when he starts with a2 Milk.

Write to Stephen Wright at stephen.wright@wsj.com