The chinese made a copy after the zenoah called yusen 5800 or silen 5800.It is a rare model that can be meet in Romania.I am not a fan of chinese chainsaws,but If i would have to but a chinese chainsaw yusen 5800 would be my first choice.I consider the yusen 5800 the most well made chainsaw made by the chinese.I don't know If it has the same quality as the zenoah but most likely its much better then the most unbranded chinese chainsaws!