Zeon reported a 15.0% year-on-year increase in net sales to 213.35 billion yen ($1.38 billion), a 77.6% rise in operating income to 16.80 billion yen, a 42.6% increase in ordinary income to 18.59 billion yen, and an 18.7% rise in net income to 12.30 billion yen in the first half (April-September) of the fiscal year ending March 2025. In the…