I purchased this about three years ago and have been using it. Made in 2021. There are no problems with its operation or use. It cooks food properly. Please refrain from purchasing if you are concerned about the blackening of the surface. No box, no instruction manual. I am selling it cheaply because I switched to a two-burner stove and no longer need it. Original price was about 4800 yen. #IH Cooktop