Don't know if you can smoke it or not. I would think not because of the oils and resins in it. I don't think you can smoke with teak which is similar. Below I found on the net.
[font=arial, Arial, Helvetica][font=arial, Arial, Helvetica]Balau is a tropical hardwood of the family Dipterocarpaceae. Balau is a very dense tightly grained wood that is heavily laden with rich tropical oils and resins. Balau’s texture is very fine and even. Our Yellow Balau looks very much like teak in color. Although, very similar in characteristics to Teak, we enjoy working with Balau for its durability, strength, seasoning and mechanical properties. For centuries Balau has been used for shipbuilding, heavy-duty furniture, heavy construction and coveted for it’s excellent strength and weather resistant qualities. [/font][/font]