No category-specific facts could be extracted from this document.
The reasons the company gives
The company's own explanation, not something inferred from the numbers.The main reasons were higher market prices for methanol and polycarbonate, the pass-through of higher raw material costs, increased sales volumes of BT materials and semiconductor-grade chemicals, the effects of price revisions, the weaker yen, and improved earnings from inventory valuation differences. Net income also benefited from the absence of the impairment loss recorded in the same period of the previous year.