At a later phase in 1930, the PIME Italian Fathers took over and much expansion was made both east and west of the Salween River.

A two-pronged mission drive was made at that early stage from the two Prefectures of Lashio and Kengtong.

Under the aegis of the Italian Missionaries, who were joined by a group of zealous diocesan priests, much headway was made.

On Dec. 16, 1990, Monsignor Charles Bo was appointed the first bishop of the newly created Diocese of Lashio.

Under the able guidance of the De La Salle Brothers, a two-year special course is given to catechists from all dioceses.

Bishop Za Hawng continued to promote the newly founded Missionary Congregation of Brothers and Sisters of St. Paul.

However, in 2000, the brothers decided to move to Pathein, where the founder could give close attention to their formation.