Zeon Corp. (TYO:4205) has posted its financial results for the first half of fiscal 2021, revealing a sizable recovery from the same period last year. Results here included 179.08 billion yen ($1.57 billion) in sales revenue, up 30.3 percent year-on-year; 24.95 billion yen in operating income, up 151.7 percent; 26.58 billion yen in ordinary income, up 143 percent; and 18.39…