Vietnam’s textile and garment sector has grown into one of the world’s top five apparel exporters, but its spinning base remains conspicuously underdeveloped relative to the scale of its cut-and-sew operations. For buyers sourcing from Vietnamese factories, understanding where spinning capacity actually sits — and what it cannot yet do — is essential for supply-chain planning and trade-compliance decisions under frameworks like CPTPP.

The Scale of the Spinning Base

Approximately 130 cotton yarn-containing spinning mills currently operate in Vietnam, according to USDA Foreign Agricultural Service data compiled through 2024–25. That number has grown incrementally over the past decade but remains small relative to peer countries: India has thousands of spinning mills; Bangladesh has several hundred BTMA-member spinning operations.

Of those 130 mills, roughly 44 percent are located in the South (Ho Chi Minh City corridor, Binh Duong, Dong Nai, Long An provinces), 41 percent in the North (Hanoi, Thai Binh, Nam Dinh, Hung Yen), and 15 percent in the Central region. This geographic split reflects the country’s historical industrial development — North Vietnam developed early state-owned textile enterprises; the South industrialised faster through foreign direct investment from the 1990s onward.

A critical asymmetry: mills with foreign investment account for approximately one-third of total mills by number but more than half of total spinning capacity. Foreign-invested spinners — primarily from Taiwan, South Korea, and China — brought the capital-intensive modern spinning technology that Vietnamese state-linked enterprises were slower to deploy.

Raw Material Dependency: Zero Domestic Cotton

Vietnam does not produce cotton commercially at any meaningful scale. The country imports 100 percent of the cotton it processes, sourcing primarily from the United States, Brazil, and Australia. USDA GAIN data published in 2025 confirm that the US, Brazil, and Australia supply the bulk of Vietnam’s cotton imports, though local industry contacts cited by USDA note problems with Brazilian cotton quality — specifically high contamination rates of animal hair and honeydew — leading some mills to preference US or Australian origins for fine-count applications.

Cotton imports are forecast to grow 10 percent to 8.4 million bales in MY2026/27 (USDA Vietnam Cotton and Products Annual), driven by increased spinning capacity utilisation and downstream garment export growth. That growth in cotton imports is the single clearest indicator of spinning sector expansion: Vietnam cannot produce fibre domestically, so import volumes are a direct proxy for mill throughput.

Beyond cotton, Vietnam relies on imports for approximately 50 percent of cotton yarn and 64–80 percent of its fabric requirements (USDA/B-Company analysis, 2024). That broad import dependency means that Vietnam’s spinning mills do not supply the full downstream yarn demand even within the country itself. A significant portion of garment factories — particularly those producing woven shirting, denim, or structured knits — still source yarn and fabric from China, South Korea, Taiwan, and India.

Cluster Geography and What It Means for Buyers

The operational clusters matter to sourcing teams because lead times, logistics costs, and service capabilities vary substantially by region.

Northern cluster (Hanoi–Thai Binh–Nam Dinh corridor): This is the older industrial heartland of Vietnamese textiles. Nam Dinh City retains a concentration of legacy spinning and weaving mills — some dating to the 1950s under state ownership, others modernised through joint-venture investment. Thai Binh and Hung Yen provinces have seen new mill investment in the 2020s. The Northern cluster primarily serves export markets via Haiphong port.

Southern cluster (Ho Chi Minh City–Binh Duong–Dong Nai): This is the most commercially dynamic zone for both spinning investment and garment production. Binh Duong and Dong Nai provinces anchor dyeing and finishing operations; new spinning investment in the corridor includes both Vietnamese-controlled and foreign-invested projects. Cut-make-trim factories in the Ho Chi Minh City region provide large proximate demand. Export logistics run through Cat Lai and Cai Mep terminals.

Central region (Da Nang, Quang Nam, Quang Ngai): Smaller in scale but benefiting from government-supported industrial zone development. International investors including Südwolle have committed capital here. In June 2026, Ecotextile News reported that Ninh Thuan Dyeing and Textile Co. Ltd — a Südwolle unit — secured approval to add VND657.5 billion ($25 million) to its existing project at Du Long Industrial Park, increasing total investment to over VND1.176 trillion ($46 million), including a new high-tech spinning mill. This kind of targeted premium investment reflects an emerging speciality-yarn segment in the Central zone.

The CPTPP Driver: Why Vietnam is Spinning

Vietnam’s accession to CPTPP — and separate bilateral FTAs with the EU (EVFTA), the UK, South Korea, and Japan — imposes yarn-forward rules of origin requirements on apparel exports under most of these agreements. Yarn-forward means that to claim preferential tariff rates, a garment’s yarn must be produced within a CPTPP member country. Importing yarn from China — which is not a CPTPP member — disqualifies those garments.

This creates a structural commercial incentive for Vietnam’s garment sector to source yarn domestically or from other CPTPP members (the US, Canada, Australia, Japan, Mexico, Peru among others). For Vietnamese spinners, it represents a demand floor that Chinese-origin yarn cannot serve. The limitation is that Vietnam’s spinning capacity, at roughly 130 mills, still cannot supply the full yarn requirements of a garment sector that is the world’s third or fourth-largest apparel exporter.

The gap is bridged by yarn imports from CPTPP members — primarily the United States and Australia for cotton, Japan and South Korea for synthetics and speciality constructions. For non-CPTPP buyers purchasing from Vietnam, the rules of origin question is less acute, but the yarn supply chain transparency that CPTPP compliance requires has raised documentation and traceability standards across the sector.

Capacity Expansion: Real Investment, Real Gaps

Vietnam’s government, through Vinatex (the state textile conglomerate) and supporting industrial-zone policy, has identified spinning and weaving expansion as a strategic priority for meeting CPTPP yarn-forward requirements. Vinatex has announced plans for multiple new spinning and weaving facilities in the 2023–2028 period, though construction timelines and financing have been mixed.

Foreign investment is more consistent. Beyond the Südwolle-affiliated project noted above, Taiwanese and Korean spinning groups have been steady investors in Vietnamese spinning capacity. Jasan International (Taiwan) has active projects in Vietnam’s Northern cluster as of 2026.

The net result of this investment pattern: Vietnam’s spinning base is growing, the growth is real, and it is concentrated in the hands of foreign-invested operators with modern technology and quality systems. But the gap between Vietnamese spinning output and Vietnamese garment-sector yarn demand remains large, and it will not close within a single investment cycle.

Vietnam’s cotton yarn exports provide an indirect measure of where the sector stands. USDA-Vietnam GAIN data show Vietnam’s cotton yarn exports rising approximately 8 percent by volume in 2025 to about 1.05 million MT, with 84 percent going to China — the largest buyer of Vietnamese yarn. That export-heavy orientation means a significant portion of Vietnamese spinning capacity is serving Chinese downstream operations, not domestic Vietnamese garment factories.

What Sourcing Teams Should Know Before Buying

Verification of yarn origin is essential for FTA compliance. If a buyer is sourcing from Vietnamese garment factories and claiming CPTPP or EVFTA preferences, the yarn-forward rule requires documentation of where yarn was spun. Not all factories maintain this documentation adequately; buyers claiming preferences should conduct supply-chain audits at the yarn-sourcing level, not just the garment factory level.

Foreign-invested mills generally hold higher quality and compliance certifications. The foreign investment share of Vietnamese spinning capacity correlates strongly with access to modern technology, consistent quality systems, and certifications such as GOTS (for organic cotton) and OEKO-TEX. Buyers with strict quality or sustainability requirements should prioritise mills with identifiable foreign investment or certified-organic programmes.

The Central Vietnam zone is emerging as a premium-yarn destination. Investment by Südwolle and similar quality-focused operators in the Ninh Thuan and Da Nang industrial zones signals that this region is developing a speciality-yarn niche — wool blends, fine-count synthetics, technical yarns — that the Northern and Southern clusters do not yet offer at scale.

China-origin fabric and yarn remain embedded in Vietnamese supply chains. Despite CPTPP incentives, Chinese yarn and fabric remain prevalent in Vietnamese garment factories for products not destined for CPTPP preference markets. Buyers purchasing for markets where Chinese-content restrictions apply — including the US under certain UFLPA enforcement frameworks — should conduct due-diligence on fabric and yarn origin, not assume Vietnamese manufacture equals non-Chinese input.

Vietnam’s spinning sector is maturing, investment is steady, and the CPTPP framework is structurally supporting domestic yarn demand. The sector’s raw-material import dependency and the foreign-investment concentration of its capacity are not weaknesses so much as defining characteristics that any buyer needs to understand before treating Vietnam as a self-contained yarn sourcing solution.