Si69: Five New Global Market Trends and Coping Strategy Analysis for Different Buyers

I. Five New Global Market Trends of Si69

One-sentence summary: Driven by green tires, high-end market controlled by foreign capital, accelerated domestic substitution, environmental protection forcing industrial upgrading, supply chain regionalization.

1. Demand Structure: Explosive Demand for Green Tires, New Growth Curve from New Energy & Sealant

Si69 (Bis[γ-(triethoxysilyl)propyl]tetrasulfide) was traditionally 90% used for silica reinforcement in tires; its application structure has undergone a thorough shift:

• Green tires (low rolling resistance): Mandatory implementation of EU labeling regulations and China's green tire standards accelerates silica replacing carbon black; Si69 penetration rate rises from 38.6% in 2024 to 45.3% in 2025 with an annual growth rate over 12%.

• New energy vehicles (battery sealant/structural adhesive): 7 leading battery enterprises completed formula verification in 2025, contributing over 15% of new demand in 2026.

• High-end rubber products/pipes: Rising demand for oil resistance, weather resistance and high reinforcement drives replacement of inefficient silane products.

• Traditional low-end tires: Demand remains flat or shrinking with price sensitivity and thin gross profit margins.

One-sentence summary: Tires as the main engine, new energy as new growth point; low-end market stable, high-end market explosive growth.

2. Supply Pattern: Global Dumbbell-shaped Differentiation — High-end Monopolized by Foreign Capital, Mid-to-low-end Oversupply in China

1. Global capacity: China 60% (Jianghan New Materials, Hongbai, Nanjing Shuguang), Evonik/Momentive/Shin-Etsu 30%, Japan-South Korea/Middle East 10%.

2. High-end grade (98%+, low VOC, low free sulfur, automotive grade): Monopolized by Evonik, Momentive and Shin-Etsu with a 40–60% premium, delivery cycles of 6–12 weeks and high patent barriers.

3. General grade (95–97%, industrial grade): Overcapacity in China with fierce price wars (21,000–25,000 RMB/ton) and gross profit margins of 8–12%.

4. New overseas capacity: Small-scale projects under construction in Southeast Asia (Thailand/Vietnam) will be released after 2027, unable to shake the market pattern in the short term.

One-sentence summary: Fierce price competition in Chinese low-end market, high-end market bottlenecked by foreign capital; domestic substitution accelerates in mid-to-low-end market and is in initial stage in high-end market.

3. Policy & Environmental Protection: Global VOC/REACH Tightens, Low Odor & Low Precipitation Become Market Access Ticket

1. EU REACH/SVHC, US EPA and China GB 38400 restrict VOC, free sulfur and heavy metals, mandating low VOC (<0.5%), low odor and traceable COA.

2. Automotive industry IATF 16949 and tire labeling regulations directly require batch traceability, full impurity inspection and VOC test reports, eliminating small and medium-sized suppliers.

3. Carbon Border Adjustment Mechanism (CBAM) raises costs for high-energy-consuming facilities, accelerating the phase-out of old Chinese capacity and improving industry concentration.

One-sentence summary: Non-compliance means no orders; green low-carbon performance upgrades from an advantage to a mandatory requirement.

4. Price & Cost: General Grade Stable Weakly, High-end Grade Rises Strongly, Raw Material & Logistics Costs Double Upward

1. Core raw materials (silane intermediates, carbon disulfide, aniline): Prices rose by 40–60% in 2025, accounting for 68% of Si69 costs and squeezing gross profit margins of general grade.

2. High-end grade: Supported by foreign capital control and certification barriers, prices remain firm and upward with a gross profit margin of 35–45%.

3. Regional price gaps widen: Europe > North America > Japan-South Korea > Domestic China, creating obvious arbitrage space for global procurement.

4. Shipping & energy: Red Sea crisis and natural gas price hikes drive international logistics costs up by 25% and extend delivery cycles.

One-sentence summary: Low-end thin profit margins, high-end premium profits; cost pressure concentrates upstream and transmits downstream.

5. Supply Chain: Reducing Single Reliance on China, Diversified Backup, Long-term Contract Volume Locking & Technology Binding

1. European and American tire customers take the initiative to reduce reliance on China: Certify local capacity of Evonik, Japan-South Korea and Thailand simultaneously to build 2–3 supply sources and avoid tariff and compliance risks.

2. Leading Chinese enterprises go global: Jianghan New Materials and Hongbai build factories in Southeast Asia to serve global customers and reduce the impact of trade frictions.

3. Combination of long-term contracts and spot goods becomes mainstream: 60–70% locked by long-term contracts for price and volume, 30% purchased via spot transactions for flexible inventory replenishment.

4. Technology service binding: High-end buyers demand formula collaboration, mixing process support and VOC testing; pure product sales face survival pressure.

One-sentence summary: Safety first, diversified sourcing dominates; supply chain shifts from cost orientation to resilience and technology orientation.

II. Four Categories of Global B-end Buyers with Distinct Challenges and Opportunities

HiSiaddi divides downstream buyers into four typical categories covering mainstream global downstream sectors:

• Global tire manufacturers (high-end green tires / mid-to-low-end tires)

• New energy vehicle sealant/structural adhesive manufacturers

• High-end rubber products/pipe manufacturers

• General rubber products/shoe materials/low reinforcement demand manufacturers

1) Global High-end Green Tire Manufacturers: High-purity Shortage, Difficult Certification & Long Delivery as Challenges; High Growth, High Premium & Domestic Substitution Window as Opportunities

Challenges

1. Global shortage of automotive-grade high-purity Si69 (98%+, low VOC, low free sulfur), controlled by foreign capital with delivery cycles of 6–12 weeks and high prices.

2. Extremely high certification thresholds: IATF 16949, REACH, VOC/odor/fogging testing and batch traceability, which small and medium-sized suppliers cannot meet.

3. High sensitivity to free sulfur, moisture and metal ions; batch fluctuations directly cause tire yellowing, scorching and excessive rolling resistance with huge losses.

Opportunities

1. Green tires are the fastest-growing track for Si69 with an annual growth rate over 12%, featuring strong long-term demand certainty and willingness to pay premium prices for stable quality.

2. Amid global supply chain restructuring, European and American tire customers actively seek second-source suppliers outside Evonik, creating great opportunities for high-quality domestic high-end suppliers.

3. Carry out joint R&D of special low VOC specifications for tires with leading suppliers to lock priority supply rights for 2–3 years and secure production capacity and technological advantages.

2) Global Mid-to-low-end Tire Manufacturers: Cost Squeezing, Price War & Unstable Quality as Challenges; Global Price Comparison, Low-end Substitution & Stable Long-term Contracts as Opportunities

Challenges

1. Raw material price hikes drive up Si69 costs, while low-end tire prices are rigid, squeezing gross profit margins to 5–8%.

2. Numerous general-grade suppliers with uneven quality lead to large batch differences in chromatic aberration, free sulfur and viscosity, resulting in high tire scrap rates.

3. Tightening environmental compliance raises low VOC and REACH requirements, increasing certification and testing costs and bringing heavy pressure on small and medium-sized factories.

Opportunities

1. Global general-grade capacity concentrates in China with sufficient spot supply and low prices, enabling global price comparison to cut costs.

2. Replace inefficient silane (such as KH550): Si69 features better reinforcement and temperature resistance and longer service life, improving product competitiveness with a 5–10% premium.

3. Phase out low-price and low-quality suppliers, lock 2–3 stable general-grade suppliers, and sign long-term contracts to stabilize prices and supply amid market fluctuations.

3) New Energy Vehicle Sealant/Structural Adhesive Buyers: Strict Standards, Long Certification Cycle, Cost Sensitivity & Unstable Supply as Challenges; High Growth, High Added Value & Technology Binding as Opportunities

Challenges

1. New energy adhesives require low VOC, low odor, high bonding strength and wide temperature resistance (-40℃~150℃), resulting in few qualified suppliers.

2. Long certification cycle of 6–12 months (automotive grade + adhesive industry standards) with high costs.

3. Strict cost control by battery manufacturers demands both high quality and cost reduction, bringing heavy bargaining pressure.

Opportunities

1. New energy vehicles serve as the second growth curve for Si69 with an annual growth rate over 20%, featuring strong long-term demand certainty.

2. Global new energy adhesive capacity transfer to Asia enables Japan-South Korea and China dual-source procurement to balance quality, price and supply risks.

3. Access to the global supply chain after obtaining battery manufacturer certification brings dual benefits of premium prices and stable orders.

4) High-end Rubber Products/Pipe Buyers: Strict Compliance, Multiple Customization, Small Batch & Price Sensitivity as Challenges; High Weather Resistance Premium, Green Product Dividend & Regional Market Deep Cultivation as Opportunities

Challenges

1. Strict EU REACH and North American environmental standards make low VOC, low migration and long-term weather resistance standard configurations with high certification costs.

2. Diverse product specifications and small batches require customized formulas, demanding high supplier flexibility and technical service capabilities.

3. Fierce market price competition compresses the premium space of high-end products, bringing heavy cost control pressure.

Opportunities

1. High-end products require a service life of 10–20 years; Si69 boasts obvious advantages in long-term weather resistance, aging resistance and high reinforcement, improving product competitiveness with a 10–15% premium.

2. The global green manufacturing trend drives growing demand for environmentally friendly Si69, making compliant products easier to enter European and American markets.

3. Deeply cultivate regional markets (Europe, Southeast Asia, etc.), customize localized specifications and provide technical services to build differentiated barriers.

III. Targeted and Implementable Adjustment Strategies for Four Categories of Buyers

1) Strategies for High-end Green Tire Buyers: Bind High-end Capacity, Lock Volume in Advance, Strict Certification, Dual-source Backup & Technological Collaboration

1. Lock production capacity 12 months in advance: Sign exclusive long-term contracts with 1 foreign capital supplier (Evonik/Momentive) + 1 domestic high-end supplier (Jianghan New Materials/Hongbai) to guarantee delivery and quality.

2. Enforce strict certification and on-site audit: Require suppliers to provide IATF 16949, REACH, VOC/odor test reports and batch traceability systems, and conduct quarterly on-site audits.

3. Prioritize high purity and strict parameter control: Adopt only 98%+ high-purity products, strictly monitoring free sulfur < 1.5%, moisture < 50ppm and VOC < 0.5%.

4. Place safety inventory in advance: Reserve 90-day consumption in local bonded warehouses to cope with delivery delays and sudden demand surges.

5. Carry out joint R&D: Optimize special tire specifications with low VOC and low free sulfur together with suppliers to secure priority supply rights.

2) Strategies for Mid-to-low-end Tire Buyers: Cost Control, Quality Stabilization, Global Price Comparison, Long-term Price Locking & Substitution Upgrading

1. Conduct global price comparison procurement: Inquire about general-grade Si69 quotes from the Middle East, Southeast Asia and South America besides China, and reduce costs by utilizing regional price gaps.

2. Implement supplier grading and quality assessment: Eliminate low-price and low-quality suppliers, retain 2–3 stable general-grade suppliers, and focus on assessing free sulfur, viscosity and batch consistency.

3. Adopt long-term contract plus spot goods allocation: Sign 1–2 year long-term contracts for 60–70% of consumption to lock prices, and purchase the remaining 30% via spot transactions for flexible inventory replenishment to avoid price surge risks.

4. Promote substitution upgrading: Gradually replace inefficient silane products with Si69 to improve product weather resistance and service life and strive for a 5–10% premium.

3) Strategies for New Energy Sealant Buyers: Automotive-grade Certification, Diversified Sourcing Balance, Cost Hedging & Technology Service Binding

1. Prioritize suppliers with automotive-grade certification (IATF 16949, VOC/odor testing), requiring complete COA, impurity spectrum and weather resistance reports.

2. Implement global dual-source procurement: Allocate 5:5 ratio between 1 Japan-South Korea supplier and 1 Chinese supplier to balance quality, price and supply risks.

3. Adopt long-term price locking plus futures hedging: Lock prices for 50% of consumption to cope with cost transmission from raw material price hikes and control overall costs.

4. Bind technical services: Require suppliers to provide adhesive formula support, mixing process optimization and failure analysis to improve product stability and competitiveness.

4) Strategies for High-end Rubber Products/Pipe Buyers: Compliance Priority, Customization, Small-batch Flexibility, Regional Deep Cultivation & Green Premium

1. Compliance first: Prioritize suppliers with complete REACH, RoHS and low VOC certification to avoid compliance risks.

2. Customize exclusive specifications: Negotiate special low VOC and high reinforcement specifications for products with suppliers to form differentiation and reduce price wars.

3. Cooperate with 3–4 suppliers with flexible production capacity to meet multi-specification and fast-switching demands for small-batch orders.

4. Deeply cultivate regional markets: Customize localized formulas and provide technical services for different regional markets such as Europe, Southeast Asia and North America to build regional barriers.

5. Strive for green product premium: Highlight environmental protection and long-term weather resistance selling points to gain a 10–15% premium and improve gross profit margins.