Can Green Value Sell? Japan’s New Household-Products Market Test

A household-products aisle is a ruthless place to test an environmental promise. Diapers, sanitary products, cleaners, wipes and pet-care goods are bought on price, performance, comfort, safety, size and habit. A sustainability claim may matter, but it competes with qualities a shopper can see or feel immediately.

That gap—between the environmental work buried inside a supply chain and the decision made at the shelf—is the target of a new corporate working group announced September 3. NTT DOCOMO BUSINESS, Unicharm and Deloitte Tohmatsu LLC have established the Working Group on Building a Green Economy by Balancing the Environmental Value and Marketability of Household Products under the GX Future League.

The group is expected to operate through the end of March 2027. It is inviting companies and organizations of any industry or size to join, with particular attention to light industry and the processors, manufacturers and other middle links that connect raw materials to consumer brands.

The first year produced an inconvenient answer

The three organizations have already spent a year examining the problem. In July 2025, they formed a predecessor group in the GX League focused on creating a green market through “intermediate emitters”—businesses involved in making, processing or supplying final consumer products.

Its final findings, released in March 2026, were sobering. According to the partners, the share of consumers willing to pay a price premium for environmental value was limited, and environmental value alone tended not to determine a purchase. On the supply side, companies had already worked to combine product performance with lower environmental impact and to improve environmental value while controlling cost. Even so, individual companies faced a structural limit in creating enough value to make shoppers actively choose the greener product.

The difficulty is especially sharp for nondurable goods. A refrigerator or vehicle can produce years of visible energy savings. A pack of wipes or diapers is consumed quickly, has many variants and usually carries a low per-unit price. Even a meaningful lifecycle improvement may be hard to explain without overwhelming the customer—or adding a cost that defeats the sale.

Carbon is essential, but it is not the entire proposition

A product carbon footprint measures greenhouse-gas emissions across a product or service’s lifecycle, from raw-material acquisition through manufacture, distribution, use and disposal or recycling, expressed as carbon-dioxide equivalent. Japan’s Ministry of Economy, Trade and Industry issued national carbon-footprint guidance in 2023 and has continued work on calculation, verification and product-category rules.

The new household-products group intends to consider more than greenhouse-gas reduction. The partners say their earlier work showed the importance of resource circulation, including its potential contribution to stable material procurement and economic security. A recycled input can carry several possible benefits at once: less virgin-resource demand, less waste, lower emissions and a more resilient source of supply.

Multiple benefits, however, also create room for multiple counting. A credible framework must distinguish a measured reduction from an avoided-emissions estimate, define the comparison baseline, set the lifecycle boundary and prevent one improvement from being claimed repeatedly under different names. “Circular,” “lower-carbon” and “resource-secure” may describe related effects, but they are not interchangeable units.

A market group and a data group

The initiative divides its work between two bodies. Unicharm serves as managing organizer of the main working group. That body will consider the future form of the market, approaches to assuring the reliability of environmental value and ways to bring consumers into an economy-wide reduction effort.

Beneath it, NTT DOCOMO BUSINESS will lead an Environmental Value Data Circulation and Social Implementation Sub-Working Group. Its agenda includes determining which data should move between suppliers and manufacturers, how that data should move, what common industry rules are required, and how technologies including data spaces could be operated and financed.

Deloitte Tohmatsu is assigned to structure and advance the discussion, drawing on work in product-level environmental-value definitions, data-use systems and intercompany coordination. The legal name deserves attention because the historical documents differ: the 2025 initiative named Deloitte Tohmatsu Consulting LLC, while the current release names Deloitte Tohmatsu LLC, the entity launched in December 2025 by integrating the group’s principal consulting, financial-advisory and risk-advisory firms.

Participant	Published role	The practical test
Unicharm	Manage the main group and compile its output	Connect environmental gains with product value and demand
NTT DOCOMO BUSINESS	Lead the data-circulation sub-group	Make primary data interoperable without exposing trade secrets
Deloitte Tohmatsu	Advance value definitions, system design and collaboration	Turn broad aims into comparable and auditable rules
Joining companies and organizations	Contribute experience from production, retail, collection and recycling	Create a system usable beyond the largest companies

The data chain is where elegant ideas become expensive

A simple household item can contain pulp, plastic resin, nonwoven fabric, absorbent polymer, adhesives, inks and packaging. Energy and freight attach to every stage. Change the size, formulation or factory and the footprint changes. A manufacturer may know its own plant emissions but lack product-specific primary data from every upstream processor and material supplier.

The predecessor group identified four related weaknesses: data fields are not sufficiently standardized, systems do not reliably interoperate, confidentiality protections remain incomplete and the overall structure is not yet flexible enough to absorb changing regulation. Those problems are not solved simply by installing a platform.

Secondary averages make calculation easier but can erase the benefit of a supplier’s real investment. Demanding fine-grained primary data can capture that improvement, but it may impose costs that smaller companies cannot absorb. Verification requires enough visibility to test a claim, while competitive suppliers must protect formulas, prices, volumes and customer relationships.

The sub-group therefore faces a governance problem as much as a technical one: which fields are mandatory, who may see them, at what level of detail, under which liability rules and at whose expense? A trusted data space that is too costly to join will not become infrastructure. A cheap system that cannot establish trust will not create value.

Japan has been building environmental trust since 1989

The effort enters a country with decades of environmental-label and procurement experience. The Japan Environment Association began the Eco Mark program in 1989, initially covering seven product categories. Its Type I ecolabel model uses third-party certification and lifecycle-based criteria. Japan’s Green Purchasing Law, enacted in 2000 and effective in 2001, created a framework for government bodies and other public institutions to procure environmentally preferable goods.

As of February 2026, the Green Purchasing Law covered 291 designated procurement items in 22 fields, while Eco Mark maintained 78 product categories. The systems are not the same: compliance with Green Purchasing Law criteria can be self-declared with supporting evidence, while Eco Mark certification is performed by the Japan Environment Association.

That history offers an important lesson. A simple mark works only because criteria, evidence, examination and renewal sit behind it. The new working group explicitly includes third-party reliability, but it has not said that it will replace Eco Mark, nor has it selected a verifier or described how any eventual consumer communication would connect with existing carbon-footprint and ecolabel systems.

Unicharm brings a real circular-economy laboratory

Unicharm’s role gives the discussion a concrete industrial setting. Through its RefF initiative, the company has worked to recover pulp, plastic and superabsorbent polymer from used disposable diapers and pants. In 2025 it announced products or materials using each recovered stream, including disposable pants containing recycled pulp, cat litter using recycled absorbent polymer and logistics pallets made with recovered plastic.

That loop reveals why environmental value cannot be produced by one company. Collection depends on users, care facilities or municipalities. Transport and processing must be organized. Recovered material has to meet quality and safety requirements. Manufacturers must adapt inputs, and retailers must give products a path to market.

Each link can bear costs while a different link receives the visible benefit. A processor may invest in new equipment, a brand may report the footprint reduction, a retailer may gain reputation, and a municipality may pay for collection. Unless the framework assigns value and cost across the chain, a technically successful recycling process may remain commercially fragile.

Three collisions the designers cannot avoid

The predecessor group concluded that a green market cannot be built through company-level effort alone. Roles and cost burdens must be redesigned across the value chain, and government and industry groups will need to participate in institutional design. That does not dictate one policy. Public procurement, retail placement, sector rules, financial evaluation and consumer incentives could all influence demand, but the new group has not endorsed a particular instrument.

The commercial question is whether environmental improvement can move from compliance expense or brand advertising into a repeatable return on investment. If the value is credible but nobody pays for it, investment stalls. If consumers pay more without reliable evidence, trust erodes. If only the largest manufacturers can afford the system, the data chain remains incomplete.

What a meaningful result would look like by March

The GX Future Consortium announced six working groups for fiscal 2026: three established through its operating council and three proposed by companies. The household-products group belongs to the latter set and is scheduled to run through March 2027. The organizers say they will use the findings to develop guidelines and practical rules in anticipation of demonstrations from the following fiscal year onward.

Progress should be judged by specifics: identified product categories, a workable minimum dataset, a method that smaller suppliers can afford, clear verification responsibility, rules for protecting confidential information, and an explanation of how the proposed framework coexists with established labels and carbon-footprint methods.

Eventually, the test must leave the conference room. A pilot will need to show that verified data alter a company’s investment decision, a retailer’s treatment of a product or a consumer’s choice—not merely produce another sustainability report.

A green household-products economy will not emerge because one more symbol appears on a package. It will require a shared chain of evidence, trust and payment behind the few seconds a shopper spends at the shelf. The three organizers have correctly located the hard part. The coming months will show whether they can make it practical.