The cumulative extension period of short-term mortgage loans of Beibu Gulf Bank shall not exceed the original loan period; the cumulative extension period of medium-term loans shall not exceed half of the original loan period; and the cumulative extension period of long-term loans shall not exceed 3 years. According to Beibu Gulf Bank's official website, the cumulative extension period of Beibu Gulf Bank's short-term mortgage loans shall not exceed the original loan period; the cumulative extension period of medium-term loans shall not exceed half of the original loan period; and the cumulative extension period of long-term loans shall not exceed 3 years.