Oct 3 (Reuters) - Hudbay Minerals Inc HBM.TO :
* SAYS STEPHEN A. LANG APPOINTED CHAIRMAN OF THE BOARD
* HUDBAY ANNOUNCES BOARD CHAIR APPOINTMENT
* SAYS CHAIRMAN OF THE BOARD ALAN R. HIBBEN RESIGNED
* HIBBEN WILL REMAIN ON BOARD AS AN INDEPENDENT DIRECTOR
* LANG SERVED AS CENTERRA GOLD INC'S CHAIR FROM 2012 TO 2019