NEA has aligned VOC control more closely with EU Industrial Emissions Directive (IED) benchmarks, especially for high-risk sectors like:
The cornerstone of Singapore’s environmental law. Under EPMA, any facility emitting regulated air pollutants must obtain an Environmental Pollution Control License. The license specifies:
Permissible emission concentrations (e.g., VOCs often capped at 20–50 mg/Nm³, depending on sector).
Monitoring and reporting obligations (including real-time data submission for large emitters from 2025 onward).
While not directly an air emission rule, the carbon tax (now SGD 25/tonne CO₂e, rising to SGD 50–80 by 2030) incentivizes energy-efficient abatement technologies—making high-efficiency RTOs economically attractive due to their >95% thermal recovery.
To operate legally—and sustainably—in Singapore’s tightly regulated environment, adopting a certified, high-efficiency RTO isn’t just smart engineering—it’s a regulatory necessity.
Note: The following content has been communicated with the client who is willing to share it publicly and does not involve disclosing client privacy.
It is a mid-sized manufacturing company specializing in outsourced semiconductor assembly and test (OSAT), providing advanced packaging services (such as Fan-Out Wafer Level Packaging) to chip design companies worldwide.
In semiconductor packaging processes, the following steps generate VOCs waste gas with high concentrations and complex compositions.
Epoxy resin adhesives are used, releasing benzene compounds, alcohols, and ketones during high-temperature curing.
Epoxy molding compounds (EMC) release harmful organic compounds such as formaldehyde and phenol during heating.
UV/thermosetting adhesives volatilize, producing acrylates and isocyanates.
Some production lines still use alcohol- or ketone-containing solvents for precision cleaning.
These exhaust gases have a low explosive limit (LEL), complex composition, pungent odor, and some substances are listed as Toxic Air Pollutants (TACs) by the NEA. According to the 2025 updated EPMA Permitting Guidelines, such emission sources must:
✅ Total VOCs concentration ≤ 20 mg/Nm³ (or removal efficiency ≥ 95%)
✅ Install a Continuous Emissions Monitoring System (CEMS) and connect it to the NEA network
✅ Use NEA-approved BAT (Best Available Technique) – RTO or RCO is explicitly recommended.
The company originally used a combined process of “activated carbon adsorption + catalytic combustion,” but during a surprise inspection by the NEA in 2024, it was found that:
After consulting with multiple suppliers, A***m learned about our three-chamber high-efficiency RTO system through an SSIA technical seminar. Its features are perfectly suited to Singapore’s demanding working conditions:
Note: The following content has been communicated with the client who is willing to share it publicly and does not involve disclosing client privacy.
The client is a manufacturer of high-end disposable medical devices (such as catheters, infusion connectors, and respirators), with over 200 employees and an annual production capacity of over 500 million medical consumables. Their products are exported to Europe, America, and the Asia-Pacific market.
The following stages of the production process continuously generate organic waste gas:
using cyanoacrylate (fast-drying adhesive) and UV-curing adhesive, volatiles include acrylates and aldehydes;
containing silicone oil and alcohol solvents;
some production lines still use isopropanol (IPA) for final cleaning.
Although the concentration of these waste gases is not high (approximately 800–1,500 ppm), their composition is complex, they have an irritating odor, and because the factory is located near a residential area in the north, it has received numerous complaints from residents.
At the end of 2024, the NEA issued an “Emissions Improvement Notice” during a routine inspection, requiring:
“Reducing VOCs emission concentration to ≤25 mg/Nm³ within 6 months and submitting a BAT (Best Available Technology) implementation plan.”
The existing “activated carbon adsorption” system could no longer meet the requirements—adsorption efficiency decayed rapidly, and spent activated carbon was classified as hazardous waste, resulting in high treatment costs.
Ms. Lim, Engineering Director of V***, saw our compact two-chamber RTO case study at the “Industrial Zero Pollution” sub-forum during **2025 Singapore International Water Week** (SIWW). She particularly noted the equipment’s:
After the event, she submitted her initial requirements through the form on our website, “regenerative-thermal-oxidizers.com”.
We dispatched a local technical team in Singapore to conduct an on-site survey and tailor-designed a low-concentration RTO system for them. Key features include:
Project Solution Details
“As a company with ‘life and health’ as its core mission, we cannot tolerate the environmental burden our production processes place on us. Your RTO not only solved our compliance challenges but also demonstrated Singapore Manufacturing’s commitment to sustainable development. The entire project, from consultation to acceptance, took only three months. Your team was professional and responsive, and I highly recommend you to our local peers.”
— Ms. Lim Wei Ling, Engineering Director, V**** Devices Pte Ltd