Automotive Components Alliance: supply-chain tiers briefing

Summary

This briefing sorts the member companies of the Automotive Components Alliance into the four supply-chain tiers the alliance publishes. It sets out the alliance's direction, shows what representative companies make in each tier, and lists questions to ask before formal review. It is written for overseas vehicle-maker buyers, tier-one and tier-two suppliers, aftermarket distributors and investors looking for counterparts in Taiwan.

As of 4 November 2026, the TINAI company directory lists 65 member companies. Siward Crystal Technology (希華晶體科技股份有限公司) is also listed in the Semiconductor Localization Alliance. SENTEC E&E (信通交通器材股份有限公司) and 大吉汽車企業股份有限公司 are also listed in the Digital Industries Alliance. Ten of the 65 carry a stock code: six on the Taiwan Stock Exchange and four on the Taipei Exchange. The other 55 carry none.

Direction of the alliance

The alliance aims to build an internationally competitive automotive components alliance by bringing together its main companies and their supply chains. It sets out four strategies: larger members lead smaller ones in a division of labour; members raise capability to meet automotive qualification thresholds; members open channels to international vehicle makers; and members develop varied export models.

These strategies map to three questions a buyer asks: who does which process, whether a part can meet automotive qualification, and how finished goods reach a vehicle maker or the aftermarket. The alliance page does not state its qualification thresholds, nor does it name members already supplying international vehicle makers. This briefing therefore describes direction only and claims no certification for any company.

The alliance page's solutions section and its case-study section both show no data, and its three headline result figures carry no labels, so their basis cannot be confirmed. The briefing does not cite them. Company counts come from the TINAI directory, counted entry by entry.

Tier one: automotive electronics

The alliance labels its first tier automotive electronics (chips) and says it supports vehicle power, safety, communications and intelligent driving. The 12 companies listed here mostly describe harnesses, electronic modules, displays and wireless communications equipment. None describes chip design as its main business, so readers should treat this tier as vehicle electrical and electronic content, not semiconductor design.

On control and communications, Wellysun (威力暘電子股份有限公司) develops automotive ECU and HMI modules, designs for functional safety and manufactures in volume. 長輝資訊科技股份有限公司 makes vehicle-tracking and wireless equipment, including 4G GPS units, dashcams and blind-spot detection systems. JET Optoelectronics (凱銳光電股份有限公司) makes components for in-vehicle infotainment, telematics and sensing systems.

On harnesses and components, 中國端子電業股份有限公司 makes car and motorcycle wiring harnesses, instrument panels and position lights, as well as electric-vehicle chargers and parking radar. 新呈工業股份有限公司 assembles cable sets. Siward Crystal makes quartz crystals, oscillators and filters, and LinkCom Manufacturing (聯寶電子股份有限公司) makes inductors, transformers and wireless-charging modules. 浩正智能科技股份有限公司 is listed in this tier, but its public description gives no business detail.

Tier two: machining and materials

This is the largest tier, with 26 companies covering forging, die casting, machining, heat treatment, surface treatment and plastic moulding. The alliance says the tier supports structural safety and lightweighting. Fwu Jih Die Casting (福記壓鑄工業股份有限公司) offers die casting, gravity casting, extrusion, forging and CNC machining. 富琮工業股份有限公司 and 義晟工業股份有限公司 forge aluminium alloy, and 奇鼎鍛壓工業股份有限公司 forges airbag parts.

Process services sit before or after part forming. 高茂金屬工業股份有限公司 provides carburising, quenching and tempering, and normalising. 長鑽科技股份有限公司 provides chemical and electroplated nickel, chemical polishing and precision cleaning. 健瀚不銹鋼股份有限公司 supplies 200, 300 and 400 series stainless-steel coil. A buyer assessing a finished part should also confirm who supplies these processes.

Electric-vehicle and plastics firms are listed here too. Amulaire Thermal Technology (艾姆勒科技股份有限公司) makes inverter and ADAS cooling modules for electric vehicles. Iron Force (劍麟股份有限公司) makes airbag and seat-belt components. Yea Wen Plastic (雅文塑膠股份有限公司) offers two-shot, insert and nitrogen-assisted injection moulding. 嘉可精密股份有限公司 makes parts for automotive, cycling, aerospace, medical and bathroom use, so its automotive share needs separate confirmation.

Tier three and channels: parts, assemblies and distribution

The parts and assemblies tier lists 24 companies and sits closest to the finished vehicle. In lighting, DEPO (帝寶工業股份有限公司) makes headlamps, fog lamps, tail lamps and indicators, and 緯恩工業股份有限公司 makes lamps for cars and trucks, including daytime running lights. In chassis parts, 靖鎰企業股份有限公司 and Motorpro (富荃工業股份有限公司) make steering and suspension components, and 冠榮橡膠企業有限公司 makes bushings, oil seals and dust boots.

Fasteners are a second concentration. SPEC Products (友鋮股份有限公司) supplies automotive fasteners and special nuts. 如保興業股份有限公司, founded in 1999, makes nuts mainly for automotive fasteners. 慶達科技股份有限公司 makes automotive, special and patented screws and exports to more than 30 countries. In the aftermarket, HUSHAN (虎山實業股份有限公司) makes door handles, vehicle cameras and parking radar under its own brand, and 弘騏興業有限公司 focuses on exterior parts such as radiator grilles and fog-lamp covers.

The channels tier lists three companies. 車麗屋汽車百貨股份有限公司 runs an accessories retail chain with installation and servicing. 詮營股份有限公司 provides car-park fee management, number-plate recognition, surveillance and guidance systems. 大吉汽車企業股份有限公司 makes bus and car parts. The alliance describes channels as the link between products and vehicle makers or the aftermarket, yet these descriptions point to retail and site services and show no sales relationship with vehicle makers.

Using the briefing, and questions before formal review

Start with the tier that matches the need: tier one for electrical content and harnesses, tier two for forging, heat treatment or moulding, and tier three for finished parts and aftermarket items. Then open the company page in the directory and ask the company for specifications, automotive qualification evidence and customer audit records. The briefing reproduces public descriptions only and has not checked any of these documents.

A financial investor might first ask what share of revenue is automotive and which capabilities need controlled due diligence to confirm. A strategic investor might ask whether a firm is a tier-one or tier-two supplier and which process or qualification still needs verification. Location of capacity also matters. 富惟工業股份有限公司 and 協鈦科技有限公司 have production sites in Vietnam, and 怡業股份有限公司 has sites in China and Vietnam. The directory gives no capacity location for the others.

Buyers with a specific need can submit the cooperation-request form, stating item, specification, volume and certification requirements. The platform makes a referral only after both sides agree, and the parties then negotiate directly. A listing is an information summary and does not mean a company's capability has been verified.