In an era where sustainability claims are everywhere, one question keeps surfacing: Can we trust them? Consumers, partners, and regulators increasingly demand transparency—not just promises.
That’s why third-party sustainability certifications have become more than just industry credentials. They’re tools of accountability, offering verifiable proof that a manufacturer is genuinely committed to reducing its environmental impact.
For manufacturers like Thong Guan, adopting internationally recognised certifications such as ISO 14001, ISCC PLUS, and GRS plays a pivotal role in building clarity, credibility, and justifiable sustainability claims.
But what exactly do these certifications mean, and how do they help shape a more responsible and transparent manufacturing industry?
Let’s explore the role of green and sustainability certifications—and how they drive real progress.
Why Sustainability Certifications Matter
Sustainability certifications are not just badges. They are structured frameworks that require companies to:
- Measure and monitor environmental performance
- Implement specific sustainability practices
- Undergo third-party audits for verification
- Improve continuously based on global best practices
By doing so, these certifications help prevent greenwashing, set industry benchmarks, and provide a common language of trust for stakeholders.
For manufacturers, having sustainability certifications can:
- Increase supply chain acceptance
- Support ESG and carbon disclosure reporting
- Meet international customer requirements
- Improve operational efficiency
- Strengthen brand trust and market competitiveness
Key Certifications Driving Impact in Manufacturing
Let’s look at three major certifications that are shaping sustainable manufacturing: ISO 14001, ISCC PLUS, and GRS. Each plays a unique role but together form a holistic validation strategy.
1. ISO 14001 – Environmental Management Systems
What it is:
ISO 14001 is one of the most widely recognised international standards for environmental management. It provides a framework for companies to identify, manage, monitor, and improve their environmental performance in a systematic way.
Why it matters:
This certification ensures that a company isn’t just complying with environmental laws but is actively improving its practices. It focuses on reducing waste, lowering energy use, and managing resources more efficiently.
Key benefits:
- Demonstrates commitment to environmental responsibility
- Supports risk management and regulatory compliance
- Encourages continuous improvement and lifecycle thinking
- Builds trust with clients and partners who prioritise sustainability
In Practice:
For manufacturers like Thong Guan, ISO 14001 certification provides a credible foundation for broader sustainability initiatives. It shows that environmental performance isn’t an afterthought—it’s integrated into daily operations.
2. ISCC PLUS – Traceability & Circular Economy Certification
What it is:
The International Sustainability and Carbon Certification (ISCC) PLUS is a globally recognised system focused on the sustainability of biomass, bio-based products, and circular materials. It’s particularly relevant for companies operating in the chemical and plastic industries.
Why it matters:
ISCC PLUS tracks raw materials from their origin to the final product using mass balance chain-of-custody models, enabling companies to credibly label and market their products as sustainable or bio-based.
Key benefits:
- Verifies responsible sourcing and circular economy practices
- Tracks recycled or bio-based content throughout the supply chain
- Helps meet buyer and regulatory demands for traceability
- Supports carbon reduction reporting
In Practice:
When companies like Thong Guan produce stretch films using post-consumer recycled content or bio-circular feedstocks, ISCC PLUS certification ensures that those claims are backed by documented traceability and verified audits.
3. GRS – Global Recycled Standard
What it is:
The Global Recycled Standard (GRS) is an international certification that sets requirements for recycled content, chain of custody, social and environmental practices, and chemical restrictions.
Why it matters:
GRS doesn’t just validate recycled content—it goes further by including environmental impact and social criteria, ensuring that the entire supply chain follows responsible practices.
Key benefits:
- Confirms authenticity and percentage of recycled content
- Encourages ethical and transparent sourcing
- Audits facilities for environmental and social responsibility
- Helps customers choose truly sustainable packaging
In Practice:
For products like PCR stretch film, GRS certification adds another layer of validation—proving not just the environmental benefits, but also that they’re made under responsible and safe working conditions.
Certification as a Bridge Between Intent and Impact
Sustainability can no longer rely on good intentions alone. Third-party certifications act as bridges between what a company claims and what it actually does.
- For customers, certifications provide transparency and a basis for comparison.
- For regulators, they simplify compliance and auditing.
- For internal teams, they serve as roadmaps for process improvements and training.
- For brand positioning, they offer credible differentiation in a crowded market.
Without independent validation, sustainability claims risk being viewed as marketing fluff. With certification, they become verifiable commitments.
Thong Guan’s Sustainability Framework in Action
As highlighted in Thong Guan’s 2024 Sustainability Statement, the company is actively aligning with global sustainability certifications to drive meaningful change across its operations.
Highlights include:
- ISO 14001-certified facilities as part of the environmental management roadmap
- ISCC PLUS certification to support sustainable sourcing of circular feedstock
- GRS certification on key recycled-content products like Maxstretch Regen PCR Film
By embracing these certifications, Thong Guan sends a clear signal: sustainability isn’t just a goal—it’s a standard.
Building Clarity and Trust Through Certification
While sustainability is complex, third-party certification simplifies the message:
“We’re not just saying it. We’ve proven it.”
Clarity and trust are essential for long-term business relationships, especially in supply chains where environmental accountability is now a critical factor. Green certifications give manufacturers the confidence to:
- Communicate sustainability metrics to buyers
- Provide documentation for compliance
- Educate internal teams with measurable goals
- Defend claims during audits or investor evaluations
Other Sustainability Certifications Relevant to Malaysian Manufacturers
While ISO 14001, ISCC PLUS, and GRS are among the most impactful certifications for industrial manufacturing and packaging, several other recognised frameworks may also benefit Malaysian manufacturers—depending on their industry focus, export requirements, and ESG objectives.
These additional certifications offer structured guidance to enhance environmental, social, and governance (ESG) practices, while also strengthening brand credibility and global competitiveness.
1. MSPO – Malaysian Sustainable Palm Oil
What it is:
Malaysia’s national sustainability standard for palm oil, covering environmental protection, social responsibility, and good agricultural practices.
Who it’s for:
Manufacturers in the food, cosmetics, or cleaning product sectors that use palm-derived ingredients.
2. RSPO – Roundtable on Sustainable Palm Oil
What it is:
A globally recognised certification promoting the sustainable production and use of palm oil through multi-stakeholder governance and transparent standards.
Who it’s for:
Export-driven manufacturers needing to meet international sustainability expectations involving palm-based inputs.
3. ISO 50001 – Energy Management Systems
What it is:
An international standard that helps organisations systematically improve energy efficiency and reduce greenhouse gas emissions.
Who it’s for:
Energy-intensive industries such as plastics, textiles, metals, and electronics.
Choosing the Right Certification Strategy
The ideal sustainability certification depends on factors such as:
- Industry type
- Target markets
- Supply chain requirements
- Specific sustainability priorities (e.g. energy efficiency, traceability, materials used)
Many manufacturers begin with ISO 14001 as a foundation and expand into more specialised certifications—such as ISCC PLUS for traceability or EcoVadis for ESG benchmarking—based on evolving business goals and stakeholder expectations.
Certifications are not one-size-fits-all, but when selected strategically, they work together to build a credible and competitive sustainability story.
Final Thoughts
Sustainability certifications like ISO 14001, ISCC PLUS, and GRS are no longer optional—they’re foundational for any manufacturer aiming to operate responsibly and transparently.
For forward-thinking companies, these certifications are more than regulatory checkboxes. They’re strategic assets that:
- Build trust with customers and stakeholders
- Drive operational improvements
- Align internal goals with global sustainability targets
As environmental standards evolve and expectations grow, manufacturers must prove they walk the talk. Certifications are the compass that keeps them on the right path—and for Thong Guan, they’re key pillars in building a justifiable and trusted sustainability journey.