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Other Disclosures4025TAKI CHEMICAL CO.,LTD.Materials and Chemicals

Notice of Joint Research on Membrane PAC with the Osaka Municipal Waterworks Bureau

多木化学 has entered into a joint research agreement with the Osaka City Waterworks Bureau concerning the environmentally friendly water-treatment coagulant “PAC for Membrane Filtration.” The research will verify optimal operating conditions and the reduction in running costs following implementation at the Osaka City Waterworks Bureau’s membrane filtration testing field.

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Announced details

Environmentally friendly water-treatment coagulant “PAC for Membrane Filtration”
Applicable field (uses covered by this announcement)

Water treatment using membrane filtration; water purification plants

Contract Date24 August 2026
What the company reported numerically
Quantitative Effects

A reduction in membrane treatment costs is expected, but specific figures are Not disclosed

Usage history

Demonstration tests have been conducted at some water purification plants, producing favorable results and insights

Relationship between the counterparty and the company
TAKI CHEMICAL CO.,LTD.4025
Relationship with the Company

Joint research agreement entered into

CounterpartyOsaka City Waterworks Bureau
Location (as indicated in this announcement)

Osaka City Waterworks Bureau Membrane Filtration Testing Field (Advanced Optimal Treatment Technology Experimental Facility)

In this announcement the company addresses none of Contract Value / Offering price / Impact on Business Performance.

Announced details
ItemDetails
Names of Products / Services CoveredEnvironmentally friendly water-treatment coagulant “PAC for Membrane Filtration”
CounterpartyOsaka City Waterworks Bureau
Relationship with the CompanyJoint research agreement entered into
Contract Date24 August 2026
Applicable areaWater treatment using membrane filtration; water purification plants
LocationOsaka City Waterworks Bureau Membrane Filtration Testing Field (Advanced Optimal Treatment Technology Experimental Facility)
Quantitative EffectsA reduction in membrane treatment costs is expected, but specific figures are Not disclosed
Usage historyDemonstration tests have been conducted at some water purification plants, producing favorable results and insights
Items this document does not state (10)
Counterparty overviewContract ValueOffering priceLaunch dateAward/certification nameAwarding / certifying bodyRegistration number and expiry dateLocation scaleImpact on Business PerformanceSource

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

The objective is to suppress membrane fouling, improve filtered water quality, stabilize membrane treatment, reduce space requirements, simplify operational management, lower water-treatment running costs, and promote market penetration of PAC for Membrane Filtration.

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Notice of Joint Research on Membrane PAC with the Osaka Municipal Waterworks Bureau | TAKI CHEMICAL CO.,LTD. (4025) timely disclosure | Komori