State construction firm Adhi Karya (ADHI) targets to hold 51% ownership in the joint venture (JV) with Korea-based K-Water engaging in water treatment. The water treatment activity is targeted to start in first quarter (Q1) of 2018. The first project is located in Banten which costs Rp4 trillion. ADHI also plans to enter into gas pipe business. ADHI booked new contracts of Rp25.4 trillion in H1 this year