Shandong Changxing Plastic Additives Co., Ltd. is building the Phase II project of its wholly-owned subsidiary, Jining Wansheng Environmental Materials Co., Ltd. The expansion will add 100,000 tonnes of annual plasticizer capacity on top of Phase I's 80,000 tonnes/year. Wansheng currently operates 80,000 tonnes/year; upon full completion it will reach 180,000 tonnes/year, and the group will reach 230,000 tonnes/year including the Changxing headquarters site's 50,000 tonnes/year as per environmental approval. The expansion is under construction, with commissioning planned for May 2027.
If you are a procurement manager or PVC manufacturer weighing long-term supply partners, here is the short version: Wansheng produces phthalate-free DOTP plasticizer on an 80,000 tonnes/year line today. Phase II is under construction and will take the site to 180,000 tonnes/year upon full completion.
Wansheng Phase II: Project Overview
Wansheng's Phase II project was approved in May 2025 and is now under construction next to the operating Phase I facility. Key details:
- Project name: Wansheng Phase II Expansion Project (万生二期扩建项目)
- Commissioning status: Under construction; planned commissioning in May 2027
- Phase I capacity: 80,000 tonnes per year of plasticizer, in operation since June 2024
- Phase II capacity: 100,000 tonnes per year of plasticizer
- Wansheng total capacity: 180,000 tonnes per year of plasticizer upon full completion
- Group capacity upon full completion: 230,000 tonnes per year of plasticizer (Wansheng 180,000 + Changxing headquarters 50,000 as per environmental approval)
- Location: Wenshang Chemical Industrial Park, Jining City, Shandong Province, China
- Feedstock: Recycled PET flakes and post-industrial polyester scrap
Wansheng's Phase I facility delivers 80,000 tonnes per year of plasticizer capacity. The Phase II project will add a further 100,000 tonnes per year through new distillation columns, refining reactors, and continuous de-alcoholization towers, for 180,000 tonnes per year upon full completion.
Readers tracking the group's capacity milestones can refer to our earlier article on Wansheng's plasticizer capacity, which covers the operating Phase I line.
Why Scale? DOTP Supply Security for Global Buyers
The decision to build Phase II reflected several market realities:
1. Growing global demand for phthalate-free plasticizers. Regulatory pressure on ortho-phthalate plasticizers continues to intensify worldwide. Business Research Insights valued the global DOTP market at roughly USD 2.7 billion in 2026 and projects USD 4.7 billion by 2035; at prevailing export prices that equates to annual consumption well above 2 million tons. China accounts for roughly half of global DOTP production capacity. DOTP, as a proven non-phthalate alternative, is seeing sustained demand growth across PVC applications: cables, flooring, food-contact films, and medical devices.
2. Supply chain resilience. The COVID-19 pandemic and subsequent logistics disruptions highlighted the vulnerability of just-in-time supply chains. Wansheng's 80,000 tonnes/year line today, rising to 180,000 tonnes/year upon completion of Phase II, gives buyers longer-term supply continuity, shorter lead times, and more room to absorb demand swings. Buyers can check the operation first-hand on a Wansheng factory tour.
3. Circular economy. Wansheng turns waste PET into high-performance DOTP, which fits what sustainability-minded buyers now ask for. The plant consumes more than 40,000 tons of waste material per year, keeping more textile and plastic waste out of landfills.
Product Consistency: One Specification for Phase I and Phase II
Wansheng has launched two product grades to better serve different application needs:
- First-Grade DOTP (APHA ≤230): Optimized for general industrial PVC applications including cables, flooring, artificial leather, and industrial films.
- Superior DOTP (APHA ≤150): Engineered for premium applications such as food-contact packaging, medical devices, children's products, and high-end consumer goods. See our dual-grade DOTP system guide for the full specification comparison.
Phase II is designed to produce identical product grades to Phase I. Both First-Grade and Superior DOTP will be made to the same specifications, under the same ISO 9001/14001/45001/50001 certified management systems. Once commissioned, a drum from either phase will be made to the same specification.
In practice, that means you can qualify Wansheng as a supplier today on Phase I product; Phase II is being built to the same specification.
Capacity Timeline
The Wansheng capacity build-out is progressing as follows:
- Mid-2024: Phase I commissioned with 80,000 tonnes/year of plasticizer capacity
- May 2025: Phase II environmental impact assessment approved
- 2025-2027: Phase II under construction, adding new distillation columns, refining reactors, and continuous de-alcoholization towers
- May 2027 (planned): Phase II commissioning, taking Wansheng to 180,000 tonnes/year upon full completion
Shandong Changxing and Jining Wansheng supply both phases under one quality system. Buyers interested in securing supply are encouraged to contact our sales team to discuss volume commitments and qualification procedures.
What the Wansheng Capacity Means for Buyers
For procurement managers, Wansheng's operating capacity and the expansion under construction offer several strategic advantages:
Supply security. Wansheng's 80,000 tonnes/year line is operating today, and the Phase II expansion will raise the site to 180,000 tonnes/year upon completion. That reduces the risk of supply disruptions during periods of high demand or unexpected facility outages.
Scalable partnership. If your own volumes are set to grow, the Phase II expansion gives the group room to keep pace with your plans once it is commissioned.
Consistent quality. With identical product grades and manufacturing standards across both Wansheng phases, buyers can qualify once and source from either phase with confidence.
Is the Wansheng Phase II project commissioned?
No. Wansheng's Phase II project is under construction, with commissioning planned for May 2027. Phase I delivers 80,000 tonnes/year of plasticizer capacity today; Phase II will add 100,000 tonnes/year, taking Wansheng to 180,000 tonnes/year upon full completion.
What is the current plasticizer capacity at Wansheng?
Wansheng currently operates 80,000 tonnes/year of plasticizer capacity from Phase I. Phase II is under construction and will bring the site to 180,000 tonnes/year upon full completion.
How much capacity does the Wansheng Phase II project add?
Wansheng Phase II will add 100,000 tonnes/year of plasticizer capacity on top of Phase I's 80,000 tonnes/year, taking Wansheng's total to 180,000 tonnes/year upon full completion.
Does the Wansheng Phase II facility produce the same product grades as Phase I?
Yes. Wansheng has launched two product grades: First-Grade DOTP and Superior DOTP. Phase II is designed to maintain identical product grades and quality standards as Phase I, so once commissioned, customers will get the same specification from either facility.
What feedstock does the Wansheng Phase II facility use?
The facility will continue Wansheng's circular-economy approach, converting waste PET flakes and post-industrial polyester scrap into high-purity DOTP through catalytic esterification and transesterification, consistent with Phase I operations.
How does the Wansheng capacity improve supply security for global buyers?
Wansheng operates 80,000 tonnes/year today; the Phase II expansion will raise the site to 180,000 tonnes/year upon full completion. Together with the Changxing headquarters site's 50,000 tonnes/year as per environmental approval, the group's plasticizer capacity will reach 230,000 tonnes/year upon full completion.
To learn more about Wansheng's DOTP product line or to discuss supply arrangements, contact our team or explore our DOTP product page.
Secure Your DOTP Supply for the Next Decade
Shandong Changxing Plastic Additives Co., Ltd. is an ISO 9001/14001/45001/50001 certified manufacturer. Jining Wansheng Environmental Materials operates 80,000 tonnes/year of plasticizer capacity today, with a 100,000 tonnes/year Phase II expansion under construction for planned commissioning in May 2027. Wansheng reaches 180,000 tonnes/year and the group reaches 230,000 tonnes/year upon full completion. We supply DOTP, DCP, and 2-octanol to clients worldwide.
Request a Free Quote + Technical Data Sheet- ✓ Wansheng 80,000 tonnes/year in operation today; 180,000 tonnes/year upon full completion
- ✓ DOTP from recycled PET, an internationally advanced process
- ✓ SGS phthalate-free, EN 71-3, PFAS-free certified
- ✓ ISO 9001 / 14001 / 45001 / 50001 certified
- ✓ 230,000 tonnes group annual plasticizer capacity upon full completion
