Investor Presentaiton

1-9. Consolidated Financial Results for the First Six Months of the Fiscal Year Ending March 31, 2023 Overview by Segment: Environmental Materials Business Segment Environmental Materials Business Segment (Agricultural Materials Business and Infrastructure Material Business) J タキロンシーアイ In the Agricultural Materials Business, last-minute demand continued to occur as price revisions in line with demand periods spread from western Japan to eastern Japan, and overall agricultural materials remained firm, resulting in increased net sales. Operating income declined due to soaring raw material prices. The Infrastructure Material Business continued to experience a decline in the number of orders for civil engineering work and construction interruptions due to COVID-19 throughout the industry. Orders received in our company also continued to be affected by the long-term suspension of large-scale construction projects and changes in construction plans. Net sales decreased due to sluggish sales of Howell piping to large properties, which were firm in the previous fiscal year. Operating income decreased due to a time lag in product price increases in response to higher raw material prices in addition to decreased sales. Environmental Materials Business язв (millions of yen) Six months ended September 30, 2021 Six months ended September 30, 2022 2Q total 1st Q 2nd Q 2Q total Results Results Results Results Year on year Net sales Environmental Materials 26,194 12,506 13,267 25,774 Business total -419 (-1.6%) Agricultural Materials 104 16,752 8,427 8,429 16,857 Business (+0.6%) Infrastructure Materials 9,441 4,079 4,838 8,917 Business -523 (-5.5%) Operating income Environmental Materials 671 18 -27 -8 -680 Business total (2.6%) Agricultural Materials 414 Business (2.5%) (0.1%) 215 (2.6%) (-0.2%) (---) (---) 74 289 (0.9%) (1.7%) -124 (-30.1%) Infrastructure Materials 257 -196 -101 -298 -555 Business (2.7%) (-4.8%) (-2.1%) (-3.3%) (---) 12

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