Portfolio Sustainability Assessment (PSA) System

“The Chemical Industry Methodology for Portfolio Sustainability Assessments (PSA)” which were Released in 2018 by the World Business Council for Sustainability Development (WBCSD), is a guideline offering chemical companies a consistent methodology for assessing sustainability of their product portfolios. The Kuraray Group PSA system was constructed in accordance with these guidelines. By utilizing this PSA system, we are able to assess our portfolio with a high degree of objectivity and transparency. The Kuraray Group will continue using the PSA system to assess our products and technologies to improve our sensitivity to changes in the environment and society. Through our PSA screening efforts, we will actively seize on opportunities and respond appropriately to risks as we seek to realize a more sustainable portfolio.

PSA Process

The Kuraray Group PSA system is as follows.


1 Scope of assessment

All businesses of the Kuraray Group are subject to assessment. We will gradually expand the scope of assessment, aiming to cover 80% of overall revenue of Kuraray products. We will also consider to use our PSA system at the stage-gate phase of product development.


2 Definition of PARCs

Product-Application-Region Combinations (PARCs) indicate the unit used in PSA system.


3 Assessment categories

Total nine categories are assessed in the following three areas.

Basic Matters
(Basic Requirements):

Chemical Hazard and safety management; Compliance with Kuraray’s Code of Conduct; Economic Contribution to company success; Reputational risks

Social and Regulatory Trends
(Stakeholder Requirements):

Regional regulatory trends; Sustainability ambitions in the value chain; Certification systems in the areas of sustainability and the environment (eco Label and certifications, etc).

Comparison with Benchmark Products

Selecting key categories for each PARC at every stage of the product life cycle (from manufacturing to disposal) from the perspective of sustainability; comparing the performance with benchmarks for each category


4 Scoring

Determining a score from 1 to 5


5 Use of results

Designate products with a score of 4 and 5 as products that contribute to Natural and Living Environment, and set targets for improvement.


In the Sustainability Medium-Term Plan, the Kuraray Group set a target of raising the sales proportion of products that improve the environment and enhance quality of life to 55% in fiscal 2024 and 60% in fiscal 2026.