Make Every Rubber Tree
Worth More
2nd-Generation Plant Hormone · Gas Stimulation Short-Line Tapping (LET)
13 years of field validation · 1-3x yield increase · tapping lifespan extended from 20 to 60 years
A Technology-Driven Enterprise
in Natural Rubber
LONG ZE GROUP (THAILAND) CO., LTD., formerly Tai Hong Rubber Co., is a group enterprise integrating rubber cultivation technology R&D, yield-enhancement services and international trade. Headquartered in Thailand, the Group provides plantation owners with end-to-end yield solutions built on its proprietary 2nd-generation plant hormone gas stimulation short-line tapping technology (LET).
The Group operates demonstration bases in Thailand, Danzhou and Baisha (Hainan, China) and Xishuangbanna (Yunnan, China), has trained over a thousand farmers and technicians, and holds ISO 9001 and FSC certifications.
Learn More
📷 Rubber plantation (placeholder)
📷 Tapping operation (placeholder)
📷 Demonstration base (placeholder)LET · Three Core Advantages
2nd-generation plant hormone (gas stimulation tapping) — tree-friendly, sustainable, fast results
1-3x Yield Increase
Significant dry rubber yield gain in the first year of application, backed by 13 consecutive years of field data. Fast returns with far better ROI than conventional tapping.
Tapping Lifespan 20 → 60 Years
Short-line tapping minimizes tree damage, extending the economic life of rubber trees to 60 years — plant once, benefit for generations.
Tapping: Dawn → Evening
With gas stimulation, tapping shifts from pre-dawn to evening. No more working in the dark — dramatically better working conditions and easier labor recruitment.
Proven in Real Plantations
First Trial & Demonstration Base
The first LET trial site in China. Years of continuous yield measurement confirmed significant dry rubber gains over conventional tapping — the starting point of the technology’s proven reliability.
Highland Plantation Deployment
Deployed in Yunnan rubber areas, proving the technology adapts to different altitudes and climates and paving the way for large-scale rollout.
Large-Scale Demonstration Base
A hundred-mu-scale base open to visitors, hosting plantation owners and government delegations — a key showcase and training hub.
International Technical Training
Ongoing study tours and training for Thai plantation owners and technicians, over a thousand trainees to date, driving adoption across Southeast Asia.
Authoritative Certifications · Global Protection
Latest News
LET Demonstration Base Welcomes Southeast Asian Delegation
A delegation of Thai plantation owners visited the Danzhou base to verify gas stimulation tapping results on site.
Natural Rubber Market Outlook 2026: Yield per Hectare Is the Key
As global supply tightens, raising yield per hectare becomes the core lever for plantation profitability.
In the Media: How Evening Tapping Changes Rubber Farmers' Lives
Beyond higher yields, LET technology is reshaping the working day of rubber tappers.
Seeing Is Believing —
Book a Field Visit
Plantation owners, enterprises and partners are welcome to visit our Thailand headquarters or China demonstration bases. We will arrange technical briefings and on-site yield measurement.