# Guann-Ming Industrial Co., Ltd. (G.M Reels)

> Taiwan-based manufacturer of SMD plastic carrier-tape reels for SMT electronics and semiconductor packaging since 1990. Family-run, ISO 9001 certified. Serves OSAT packaging houses, fabless IC design firms, and IDM component manufacturers.

The G.M brand specializes in plastic carrier-tape reels in six sizes (4" / 7" / 10" / 11.25" / 13" / 15") with three ESD options (anti-static, conductive, insulative). Reel material is PS / ABS (anti-static grade); EIA-481 compliant; white / black / custom colors. Guann-Ming also runs a plastic injection molding OEM division (since 2010) and a vacuum forming OEM division — all in the same Hsinchu facility. Samples available; worldwide shipping. Not certified for automotive use (no IATF 16949 / AEC-Q / PPAP).

## Products

- [SMD Plastic Reels (Carrier-Tape Reels)](https://www.guannming.com/product-reels): Six sizes 4–15", three ESD options (anti-static / conductive / insulative), PS/ABS material, EIA-481 compliant, with freight-saving tool-free multi-piece designs.
- [Plastic Injection Molding OEM](https://www.guannming.com/product-injection): Custom injection molding since 2010 — precision plastic parts, brackets, electronic enclosures; materials incl. ABS, PC, PP, POM, HIPS; in-house DFM mold design and tooling.
- [Vacuum Forming OEM](https://www.guannming.com/product-vacuum): PET/PS vacuum-formed IC carrier trays, electronic work trays and tool packaging boxes, with anti-static options and custom molds.

## Company

- [About Guann-Ming](https://www.guannming.com/about): Company history since 1990, five international certifications (ISO 9001, RoHS, Halogen-Free, REACH, SGS), Hsinchu HQ, RFQ form.
- [FAQ — Technical Q&A Library](https://www.guannming.com/faq): Technical Q&A on product specs, ESD properties, certifications, lead time, OEM customization, and export logistics.
- [Insights — Technical Reference](https://www.guannming.com/insights): Long-form technical guides and buyer guides.

## Insights & Buyer Guides

- [Reels, IC Trays & Injection for the Semiconductor Supply Chain](https://www.guannming.com/insights/reels-ic-trays-for-semiconductor-supply-chain): SMD carrier-tape reels, vacuum-formed IC trays and custom injection for the semiconductor supply chain — packaging & test (OSAT), IC design (fabless) and component makers. EIA-481, ESD grades, ISO 9001, made in Hsinchu, Taiwan.
- [Carrier Tape Reel & IC Tray Packaging for OSAT (Assembly & Test)](https://www.guannming.com/insights/carrier-tape-reel-ic-tray-packaging-osat): Carrier-tape reel & IC tray packaging for OSAT (assembly & test): EIA-481 SMD reels (4-15", PS/ABS), anti-static/conductive/insulative ESD, vacuum-formed IC trays, export-ready. Guann-Ming, Hsinchu Taiwan.
- [Electronics Packaging Compliance: RoHS, REACH, Halogen-Free & EIA-481](https://www.guannming.com/insights/electronics-packaging-compliance-rohs-reach-halogen-free): Electronics packaging compliance explained: RoHS, REACH, Halogen-Free and EIA-481 for carrier-tape reels and IC trays. Guann-Ming provides ISO 9001, RoHS, Halogen-Free, REACH and SGS documentation. Hsinchu, Taiwan.
- [How to Choose a Plastic Injection Molding Supplier (Taiwan)](https://www.guannming.com/insights/injection-molding-supplier-taiwan): How to choose a plastic injection molding supplier: DFM support, in-house tooling, ABS/PC/PP/POM/HIPS material range, ISO 9001 and export capability — and what to send for a quote. Guann-Ming OEM, Hsinchu Taiwan.
- [Standardizing Reel & Tray Packaging for Fabless & IDM](https://www.guannming.com/insights/reel-tray-packaging-fabless-idm-standardization): Standardize reel & tray packaging for fabless and IDM: one EIA-481 reel standard, a defined ESD class per device family, consistent tray pockets, one qualified supplier. Guann-Ming, 4-15" PS/ABS reels, Taiwan.
- [How to Choose an SMD Plastic Reel Manufacturer (Taiwan)](https://www.guannming.com/insights/smd-reel-manufacturer-taiwan): How to choose an SMD plastic reel manufacturer: EIA-481 compliance, sizes 4"–15", anti-static/conductive/insulative ESD options, freight-smart 3-piece design, ISO 9001. Guann-Ming, Hsinchu Taiwan, since 1990.
- [Sustainable Electronics Packaging: Recyclable PET & Green Procurement](https://www.guannming.com/insights/sustainable-electronics-packaging-recyclable-pet-green-procurement): Sustainable electronics packaging: recyclable PET vacuum-formed trays and freight-saving tool-free reels that ship flat (~60% less ocean volume), Halogen-Free/RoHS/REACH documented. Guann-Ming, Taiwan, for green procurement.
- [How to Choose a Vacuum Formed Tray Supplier (Taiwan)](https://www.guannming.com/insights/vacuum-formed-tray-supplier-taiwan): How to choose a vacuum formed tray supplier: PET vs PS material, ESD/anti-static options, custom tooling and draft angle, ISO 9001 and export capability — and what to send for a quote. Guann-Ming, Hsinchu Taiwan, since 1990.
- [Why Source Plastic Reels & Injection from Taiwan (China +1)](https://www.guannming.com/insights/why-source-plastic-reels-injection-taiwan): Why source SMD plastic reels and plastic injection OEM from Taiwan: a China +1 second source in Hsinchu since 1990 — ISO 9001, RoHS, EIA-481, export-ready with worldwide shipping and samples.
- [Cut Ocean Freight ~60% with Tool-Free 3-Piece Reels](https://www.guannming.com/insights/cut-ocean-freight-3-piece-smd-reel): Tool-free 3-piece 13-inch SMD carrier-tape reels ship flat and cut ocean-freight volume ~60% — about 5,000 vs 12,000 reels per 40 ft container. Hand snap-lock, no welding equipment. Made in Hsinchu, Taiwan.
- [Plastic Injection OEM & Custom Mold Development](https://www.guannming.com/insights/plastic-injection-oem-custom-mold-guide): Complete guide to plastic injection OEM and custom mold development: CAD/CAM tooling, runner and cooling design, precision molding, materials PP/ABS/PC/PMMA, and applications in optical covers, agricultural parts and UL94 housings.
- [Vacuum-Formed Trays & PET / PS Sheet Selection](https://www.guannming.com/insights/vacuum-formed-tray-pet-ps-guide): Complete guide to vacuum forming (thermoforming): PET vs PS sheets, custom-pocket and stepped-stacking design, and applications in electronic trays, wafer/chip box liners and optical lens trays.
- [SMT Plastic Reels & the EIA-481 Standard](https://www.guannming.com/insights/smt-plastic-reel-eia-481-standard-guide): Complete guide to SMT plastic reels and the EIA-481 standard: dimensional tolerances, ESD protection, cover-tape peel strength, and applications in resistor, IC, LED and sensor packaging.
- [13" vs 15" SMD Reel Complete Selection Guide](https://www.guannming.com/insights/13-vs-15-inch-reel-comparison): Compare two mainstream specs by size, capacity, and line efficiency. 13" is SMT mainstream; 15" saves 30% changeover time.
- [Anti-Static / Conductive / Insulative ESD Type Selection](https://www.guannming.com/insights/anti-static-conductive-insulative-selection): Surface resistance 10¹¹ vs 10⁵ Ω/sq — how to choose? Decision logic based on IC ESD sensitivity, SMT mass production, and special applications.
- [Plastic Vacuum Forming Complete Guide](https://www.guannming.com/insights/plastic-vacuum-forming-thermoforming-guide): Vacuum forming (thermoforming) process, male vs female molds, PS/PET/PVC/ABS material selection, vacuum forming vs injection molding decision, tray & electronic packaging applications, ESD treatment, tooling & sampling.
- [Plastic Injection Molding Complete Process Guide](https://www.guannming.com/insights/plastic-injection-molding-process-guide): Complete plastic injection molding guide: six process stages, HIPS/ABS/PP material selection, design points like wall thickness and draft angle, common defects, plus injection vs vacuum forming and SMD reel applications.
- [Injection Molding Defects Troubleshooting Guide](https://www.guannming.com/insights/injection-molding-defects-troubleshooting): Injection molding defects troubleshooting guide: causes and remedies for sink, flash, short shot, warpage, weld line, silver streak, burn, and flow mark, plus a defect vs melt temp/pressure/speed quick reference table.
- [MSL Moisture Sensitivity Levels & Moisture-Barrier Packaging](https://www.guannming.com/insights/msl-moisture-sensitivity-level-packaging-guide): Complete guide to MSL moisture sensitivity levels: J-STD-020/033 MSL 1–6 mapping, floor life after opening, reflow popcorn effect, moisture barrier bag (MBB) / desiccant / humidity card and baking conditions. Moisture-control practice for SMD reels and IC Trays.
- [SMD Reel Capacity Calculation: Pocket Pitch, Tape Length & Count](https://www.guannming.com/insights/smd-reel-capacity-pocket-pitch-calculation): How to calculate SMD reel capacity? From pocket pitch (P1), usable tape length and leader/trailer to 7"/13"/15" reel diameters, step by step to parts per reel, with a quick-reference table for common 4/8/12 mm pitches and purchasing notes.
- [Vacuum Forming vs Injection Molding Process Selection Guide](https://www.guannming.com/insights/vacuum-forming-vs-injection-molding-selection): How to choose between vacuum forming and injection molding? A full comparison across tooling cost, suitable thickness/part type, dimensional precision, volume and lead time, plus the advantage of commissioning both processes at one facility.
- [Vacuum-Formed Electronic Tray Design: Work Tray / IC TRAY / Box](https://www.guannming.com/insights/vacuum-formed-electronic-tray-design-guide): Vacuum-formed electronic tray (work tray / IC TRAY / tool packaging box) design guide: compartments and pocket arrays, draft angle, anti-static ESD surface-resistance specification, stacking and wall thickness, contour-custom pockets and the tooling flow.
- [Injection Molding Tooling Flow: 5 Stages from Drawing to Production](https://www.guannming.com/insights/injection-molding-tooling-process-leadtime): Complete guide to injection molding tooling flow: five stages from drawing/sample submission, mold design, T1 trial, sample confirmation to production, with about 30–45 day lead time, what to prepare at each stage, and three tips to reduce tooling risk.
- [Injection Material Selection: PS / HIPS / ABS / PP / PC Properties](https://www.guannming.com/insights/injection-molding-material-selection-guide): Injection material selection guide: properties, pros and cons and typical applications of the five common electronics plastics PS / HIPS / ABS / PP / PC, how material affects shrinkage and the mold, and anti-static and color modification.
- [Injection Part DFM Essentials: Wall, Draft, Ribs, Sink](https://www.guannming.com/insights/injection-molding-dfm-design-guide): Injection part DFM (design for manufacturing) essentials: uniform wall thickness, 0.5–2° draft, ribs instead of solid thickening, fillets, design habits to avoid sink and warpage, and the importance of a DFM review before tooling.

## Contact

- Email: terry0601@guannming.com
- Phone: +886-3-525-8219
- Address: No. 8, Lane 247, Niupu Rd., Xiangshan Dist., Hsinchu City 300, Taiwan