Do tobacco sticks produce tar?

No. Heated tobacco is different from burning tobacco.

Using HeatFlow Tobacco Heating Technology, the stick is heated from the outside to the core, gently releasing rich tobacco flavor throughout the session. 

HeatFlow Innovative HT technology doesn't produce the tar that's generated by burning tobacco, which means there's no smoke and less tobacco smell on your clothes and breath, and less visible staining on your teeth, when compared with smoking.