7 Best Plastic Injection Moulding Companies in Singapore (2026)

Plastic injection moulding turns a product idea into repeatable parts, but the companies that offer it differ widely. Some are large precision manufacturers built for medical or automotive programmes, others are small moulders that also make their own tools, and a few focus on prototypes and short runs. This guide lists seven Singapore operators, using only what each publishes on its own website, so capabilities are attributed rather than assumed. Use it to build a shortlist, then send each firm your drawing, material, annual quantity and quality requirements. Check that its stated certifications and process range match the job before you commit to tooling.

Kay Kay Plastic Industries calls itself a pioneer in precision plastic injection moulding in Singapore and says it has operated since 1985. Its site names automotive, medical device and aerospace work among its sectors, and states ISO 13485:2016 and ISO 9001:2015 certification. Its services page describes high-pressure injection moulding, insert moulding and overmoulding, plus an in-house mould repair service, scheduled mould maintenance and secondary work such as machining, assembly, spray painting, silk screen printing and laser engraving. The company says it checks parts visually, dimensionally and functionally. It lists two Singapore sites, one in the Kallang Place area and one in Woodlands, and publishes an email address for sales enquiries. A sound pick if you need a long-established local moulder with finishing options.

Kallang Place and Woodlands
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Racer Technology describes itself as a contract development and manufacturing organisation that designs, engineers and produces products for electronics, Internet of Things and medical device customers. Plastic injection tooling and mass production appear among its listed services alongside OEM product design, rapid prototyping and assembly. Its site also lists secondary processes, including spray painting, printing, ultrasonic welding, electroplating, heat staking, labelling, packaging and PCB assembly, and mentions a quality system management service. Its contact page gives a Changi South address and a sales email. Because it presents a design-to-production offering rather than moulding alone, it may suit teams that want one partner for tooling, moulded parts and downstream assembly, as long as the programme fits its scale.

Changi South
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Yin-Shan Engineering calls itself an end-to-end provider of personalised injection moulding and product design, and its pages mention OEM, ODM and contract manufacturing. Its technical page lists a wide range of materials, among them ABS, polycarbonate, nylon, polypropylene, PVC and Santoprene, and describes precision mould design and fabrication, jigs and fixtures, prototype samples for feasibility checks, and mould repair and modification. The site also says the plant has its own maintenance team and offers a free consultation. Its homepage features products such as modular drain grating and everyday plastic items, which suggests experience with consumer and building products. Contact details include an enquiry email, a phone line and a WhatsApp link, which makes it approachable for smaller custom jobs.

Singapore (location on request)
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GM Singapore, trading under the name Guan Ming Singapore Pte Ltd, presents plastic injection moulding on its own service page as a route to custom parts for rapid production, small batches and low-volume runs. It says overmoulding, where layers of different polymers add colour, texture or strength, is available. The same page says it has in-house CNC and EDM mould making, and lists related services including prototyping, surface finishing, protective coatings, packaging and shipping. The company also supplies fasteners, bearings and carbide tooling according to its site, so it may be a convenient single supplier for engineering buyers who need both parts and tooling consumables. It publishes an enquiry email and a contact page for quotation requests.

Singapore (location on request)
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SSOSS Cast lists plastic injection moulding on its website alongside precision zinc and aluminium die casting, CNC machining, 3D printing, tool fabrication and surface finishing. Its moulding page describes precision plastic components for telecommunications and other industries, naming ABS and nylon as example materials and stressing durability and large-scale production. The company says it has a Singapore office at Shaw Road and a factory in Fujian, China, and its footer carries a 2026 copyright notice. Contact routes include an enquiry form, a Singapore phone line and a WhatsApp link. It is best seen as a metal-and-plastic parts supplier, a useful option when one product needs both a die-cast housing and moulded plastic components.

Shaw Road
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Beyonics is a precision manufacturer that lists plastic injection moulding among the plastics services at its Singapore headquarters and factory in the Marsiling area. Its site also mentions insert moulding, overmoulding, cleanroom moulding to ISO class 8, controlled-environment moulding and automated moulding, and says it serves MedTech, Mobility and SmartTech customers. The company states ISO 9001, ISO 14001, IATF 16949 and ISO 13485 certification for its Singapore operation. Recent news items on the site are dated 2026. Beyonics describes its services as aimed at high-value, complex manufacturing, so smaller or simpler jobs may need an early conversation about fit. Enquiries go through a contact form or its general information email, so describe your part and volume clearly.

Marsiling
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Omni Mold describes itself as an ultra-precision plastic injection mould-making company in Singapore, founded in 1989 and related to Sunningdale Tech. Its site says it builds high-precision, highly complex and high-cavitation moulds, and names medical, pharmaceutical, healthcare, food packaging, IT, office automation, automotive and consumer electronics among the sectors it serves. This is a tooling specialist, so it fits buyers who need a demanding mould built before production moulding starts, rather than those looking only for low-cost parts. The site carries a 2026 copyright notice and gives a Joo Koon address, a sales phone line and a sales email for enquiries. Ask what moulding support is available after the tool is delivered.

Joo Koon
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