Hagoromo has been described as "the Rolls-Royce of chalk." The formerly Japanese, now Korean brand's chalk is known for its smooth consistency, its vibrancy, and being nearly dust-free. But the ...

Now, he manufactures the top-shelf product coveted by anyone with a blackboard, saving it after the original Japanese maker, Hagoromo Stationery, went out of business. Shin, 50, is not the only ...