Through the management of Tuju Wali Wali, Bosowa has established itself as a trusted construction contractor in Eastern Indonesia. Over the years, Tuju Wali Wali has successfully completed infrastructure projects in Eastern Indonesia, particularly in Papua and Sulawesi. One of the notable projects undertaken by PT Tuju Wali Wali between 1990 and 1998 was the construction of the 560-meter-long Maroo River Bridge in Merauke Regency, Papua.
Other significant projects include the construction of Sections 1 and 2 of the Makassar Toll Road, the first toll road project in Eastern Indonesia; the Mamuju Arterial Road in West Sulawesi; the Phase II Airside Construction at Sultan Hasanuddin Airport, Makassar; Flexible Pavement Package; and the Rail Line Construction Project from Km. 88+100 to Km. 89+000 on the Makassar-Parepare route.