Greentech Green Environment JSC
Greentech Fuel Saver — Exclusive Distributor for Vietnam

Greentech Green Environment JSC

Greentech Green Environment JSC (Công ty CP Môi trường Xanh Greentech) is the exclusive Greentech distributor for Vietnam, authorised by the manufacturer, Moletech International Technology Limited.

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Authorised Greentech distributor Patented device, fitted once Independently road-tested
Multiple countries Patents granted in the US, Taiwan, Vietnam, China and South Africa, plus a registered EU design
US 11,713,737 B1 United States patent, granted August 2023 — a public, checkable file
Fitted once No refill, no dosing, no subscription. One purchase per vehicle
Who we are

About Greentech Green Environment JSC

Greentech Green Environment JSC (Công ty CP Môi trường Xanh Greentech) is the exclusive Greentech distributor for Vietnam, authorised by the manufacturer, Moletech International Technology Limited. From Ho Chi Minh City, the company supplies Greentech fuel savers for motorcycles, cars, taxis, pickups, trucks and buses — from the GBall for a motorbike tank to the D51 for a 500-litre truck tank. Its founder and general director, Ms. Trần Ngọc Vân (Van Mary), has been bringing Greentech to Vietnamese drivers since 2020.

Greentech has been measured in Vietnam on the road and at an official inspection centre. In 2020, 20 Grab drivers in Ho Chi Minh City fitted it to their motorcycles: fuel use fell 9.5% on average, the best bike saved 21.2%, and 75% of the riders said their engine ran more smoothly. In June 2025, the Can Tho Centre for Technical Inspection of Road and Waterway Vehicles ran an official exhaust test: carbon monoxide fell 93.6% on a motorcycle fitted with Greentech and 100% on a car fitted with a G10A, and hydrocarbons fell 74% and 75%.

The company works with Vietnam’s transport sector. Toàn Thắng Limousine runs Greentech in its Ford Transit limousine vans. On 15 November 2024, Hyundai Phú Lâm, a Hyundai truck and bus dealer in Ho Chi Minh City, signed a cooperation agreement with Greentech. In December 2022, Greentech was among the partners of the Vietnam Automobile Transportation Association (VATA) conference.

The Greentech fuel-saving and emission-reducing device is protected in Vietnam by invention patent No. 55934, granted by the Intellectual Property Office of Vietnam on 23 January 2026. Every unit is made in Taiwan by Moletech, sits in the fuel tank, with no engine modification and needs no maintenance. Contact the Ho Chi Minh City office for the right model, pricing and installation.

Case studies

PDF · opens in a new tab
Official exhaust test in Can Tho: a motorcycle and a car (2025) Official exhaust test in Can Tho A motorcycle and a car (2025) Open PDF Logistics Portserco, Da Nang: two trucks on a D51, 6.9% and 2.5% less diesel (2022) Logistics Portserco, Da Nang Two trucks on a D51, 6.9% and 2.5% less diesel (2022) Open PDF Minh Phu Seafood: company car fuel quota cut from 18 to 16 L/100 km (2022) Minh Phu Seafood Company car fuel quota cut from 18 to 16 L/100 km (2022) Open PDF Hanoi ride-hailing drivers union: a full tank down from about 650,000 to 550,000 VND after four months Hanoi ride-hailing drivers union A full tank down from about 650,000 to 550,000 VND after four months Open PDF Long Thanh Phat, Ho Chi Minh City: container trucks on a D51, at least 12% less fuel after three months (2024) Long Thanh Phat, Ho Chi Minh City Container trucks on a D51, at least 12% less fuel after three months (2024) Open PDF EIC fuel-quality test: RON 95 petrol, no significant change in 25 tests (2020) EIC fuel-quality test RON 95 petrol, no significant change in 25 tests (2020) Open PDF

More documents

PDF Vietnam Register letter No. 3731/ĐKVN-TB-CTB — opinion on fitting Greentech in ships (25 August 2026), Vietnamese + English Open PDF Test report — Logistics Portserco, Da Nang (Khang Nguyen Trading, December 2022) Open PDF Minh Phu Seafood — fuel quota request for a company car (23 February 2022) Open PDF EIC Test Report on Quality No. 20410867 — RON 95 petrol before and after Greentech (27 November 2020) Open
Official exhaust test · Vietnam

Carbon monoxide down 93.6% on a motorcycle and to zero on a car

The Can Tho Centre for Technical Inspection of Road and Waterway Vehicles and Equipment analysed the exhaust of two gasoline vehicles before and after a Greentech fuel enhancer went into the tank: a motorcycle with a G10A-20L and a car with a G10A. Carbon monoxide and unburnt hydrocarbons fell sharply on both.

Official exhaust test · Can Tho, Vietnam · 9 June 2025

−93.6% Carbon monoxide on the motorcycle with a G10A-20L
−100% Carbon monoxide on the car with a G10A: 2 before, 0 after
−74% Unburnt hydrocarbons on the motorcycle: 97 → 25 ppm
−75% Unburnt hydrocarbons on the car: 12 → 3 ppm

The centre’s readings — same vehicle, before and after fitting

VehicleGreentech modelGasBeforeAfterChange
Motorcycle G10A-20L CO 3 0.19 −93.67%
Motorcycle G10A-20L HC (ppm) 97 25 −74.23%
Car G10A CO 2 0 −100%
Car G10A HC (ppm) 12 3 −75.00%

After fitting, against the reading before (before = 100)

Motorcycle · CO
100.00
6.33
Motorcycle · HC
100.00
25.77
Car · CO
100.00
0.00
Car · HC
100.00
25.00
Before fitting (= 100) After fitting

What the centre measured

The inspection centre ran each vehicle’s exhaust through its gas analyser before and after fitting and printed both readings side by side in one report, stamped by the centre and dated 9 June 2025, with photos of each vehicle and of the analyser screen.

What it means

Carbon monoxide and hydrocarbons are the fuel an engine leaves unburnt. When they fall this far, more of every litre is being burned. The centre’s remark on both vehicles: they ran smoother and more responsively, with no smell of raw fuel.

Fuel economy on the road

In 2020, 20 Grab drivers in Ho Chi Minh City fitted Greentech to their motorcycles and used 9.5% less fuel on average; the best bike saved 21.2%, and 75% of the riders said their engine ran more smoothly.

Get the right model for your vehicle Full case study (PDF)
What we supply

Choose by fuel tank, not by guesswork

Each model is sized to a tank. Tell us the vehicle or the equipment and we will confirm the right one before you order.

Greentech G-Ball — Fuel Enhancer for Small Gasoline Engines GT-GBALL

Greentech G-Ball — Fuel Enhancer for Small Gasoline Engines

For small gasoline engines with a tank up to 20 litres: motorbikes, scooters, generators and pumps.

870,000 VND Excl. 8% VAT
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Greentech G10A — Fuel Enhancer for Mid-size Gasoline Engines GT-G10A

Greentech G10A — Fuel Enhancer for Mid-size Gasoline Engines

For mid-size gasoline engines with a tank up to 60 litres. In Vietnam it also comes as the G10A-20L for motorcycle tanks under 20 litres, the model in the Can Tho test.

2,310,000 VND Excl. 8% VAT
G10A-20L · tanks up to 20 L: 750,000 VND
Order now Product page →
Greentech G10A-20L — Fuel Enhancer for Motorcycles and Generators GT-G10A-20L

Greentech G10A-20L — Fuel Enhancer for Motorcycles and Generators

For gasoline motorcycles, scooters and generators with a tank under 20 litres.

750,000 VND Excl. 8% VAT
Order now Product page →
Greentech G10 — Gasoline Fuel Enhancer for Cars and SUVs GT-G10

Greentech G10 — Gasoline Fuel Enhancer for Cars and SUVs

For cars, SUVs and light vans with a gasoline tank up to 100 litres.

3,310,000 VND Excl. 8% VAT
Order now Product page →
Greentech G11 — Complete Fuel System for Passenger Cars GT-G11

Greentech G11 — Complete Fuel System for Passenger Cars

The complete set for gasoline passenger cars with a tank up to 100 litres: the fuel enhancer plus an Air Refiner on the air intake.

5,885,000 VND Excl. 8% VAT
Order now Product page →
Greentech D-Ball — Fuel Enhancer for Small Diesel Engines GT-DBALL

Greentech D-Ball — Fuel Enhancer for Small Diesel Engines

For small diesel engines with a tank up to 20 litres: generators, pumps and light machinery.

870,000 VND Excl. 8% VAT
Order now Product page →
Greentech D10 — Diesel Fuel Enhancer for Cars, Pickups and Vans GT-D10

Greentech D10 — Diesel Fuel Enhancer for Cars, Pickups and Vans

For diesel cars, pickups, vans and small generator sets with a tank up to 100 litres.

3,310,000 VND Excl. 8% VAT
Order now Product page →
Greentech D11 — Complete Diesel System for Passenger Cars & SUVs GT-D11

Greentech D11 — Complete Diesel System for Passenger Cars & SUVs

The complete set for diesel passenger cars and SUVs with a tank up to 100 litres: the fuel enhancer plus an Air Refiner.

5,885,000 VND Excl. 8% VAT
Order now Product page →
Greentech D21 — Diesel System for Twin-Tank Trucks & Machinery GT-D21

Greentech D21 — Diesel System for Twin-Tank Trucks & Machinery

For twin-tank trucks and machinery: two enhancers for two tanks of about 100 litres (or one tank up to 200 litres), plus an Air Refiner.

Product page →
Greentech D50 — Heavy-Duty Diesel Fuel Enhancer for Trucks, Buses and Boats GT-D50

Greentech D50 — Heavy-Duty Diesel Fuel Enhancer for Trucks, Buses and Boats

For trucks, buses, machinery and boats with a diesel tank up to 500 litres, one D50 per 500 litres of tank.

Product page →
Greentech D51 — Heavy-Duty Diesel System for Trucks & Buses GT-D51

Greentech D51 — Heavy-Duty Diesel System for Trucks & Buses

The heavy-duty set for trucks, buses and large fleet vehicles with a tank up to 500 litres: the fuel enhancer plus an Air Refiner.

12,790,000 VND Excl. 8% VAT
Order now Product page →
See it, then hear it

How it works — and what the operators say

Three minutes on why engines waste fuel, then the fleet owners themselves on what changed. Named companies, named vehicles, their own fuel records.

How Greentech works (animated introduction, Vietnamese subtitles)
How to install Greentech (3D animation, Vietnamese subtitles)
Duong Hong Limousine, Da Nang, fits the D21-200L to its sleeper coach
Vinasun taxi driver Mr. Dung: G10A in his taxi, Ho Chi Minh City
Hanoi ride-hailing drivers union: Mr. Hung after four months with Greentech
Long Thanh Phat Transport: D51 on its container trucks — 12% less diesel in a 3-month trial, after which the company became the Greentech dealer for Thu Duc City
Installing GREENTECH for Hoa Lan Company's fleet.
Results after 3 months of using Greentech for the Minh Phu Seafood Group fleet.
Mr. Dong's review: GBall-20L on his Mazda
GBall fitted to a Toyota Veloz at Toyota Vung Tau
Motorbike exhaust before and after Greentech, Hanoi
GBall on a Mercedes-Benz CLA250, Ho Chi Minh City
GREENTECH has partnered with HYUNDAI PHU LAM to deliver solutions for fuel savings and the reduction of environmental emissions.
Results after 3 months of using Greentech for the GRAB company fleet.
GREENTECH was installed in GREEN LEAF's transportation fleet.
Greentech fitted to a tractor truck
Greentech fitted to a Freightliner truck
Introduction to GREENTECH – For Motorcycles
Launch of the Greentech Distributor Network in the South
Brand Ambassador – Actor Truong Thinh
CEO Ngoc Van presents Greentech to the VBCI business community
On site

Installations, fleets and field work

Results after 3 months of using Greentech for the GRAB company fleet.
Results after 3 months of using Greentech for the Minh Phu Seafood Group fleet.
GREENTECH trial results on PORTSERCO's transport fleet
GREENTECH test results for motorcycles, automobiles, and containers from the inspection center in Can Tho.
The Automotive Technology Union, under the Ministry of Transport, has signed an agreement to partner with GREENTECH to help transform gasoline-powered vehicles into green vehicles.
Test results show that GREENTECH is completely safe and does not cause fires or explosions in gasoline or oil environments.
GREENTECH has partnered with HYUNDAI PHU LAM to deliver solutions for fuel savings and the reduction of environmental emissions.
GREENTECH trial results with Long Thanh Phat Transport Company
After more than three months of using the GREENTECH system, Toan Thang—which operates the Saigon–Vung Tau route—has achieved fuel savings of at least 10%; importantly, the vehicles also successfully passed their mandatory inspections.
GREENTECH partners with the VOV Traffic channel to call for a collective effort to bring a green environment to the community!
Hyundai Phú Lâm and Greentech sign a cooperation agreement, Ho Chi Minh City, 15 November 2024
Grab drivers in Ho Chi Minh City with their Greentech units. In the 2020 test, 20 motorcycles used 9.5% less fuel on average
Toàn Thắng Limousine runs Greentech in its Ford Transit limousine vans
Ms. Trần Ngọc Vân interviewed at Hyundai Phú Lâm’s Customer Day, November 2024
Greentech Vietnam with Smart Logistics Vietnam, Ho Chi Minh City, 2024
The team at the Greentech showroom in Ho Chi Minh City, 2021
A Greentech-branded car in Ho Chi Minh City, 2020
Ms. Trần Ngọc Vân on stage as Green Environment Ambassador at the Hương Sắc Việt programme, Ho Chi Minh City, October 2020
GREENTECH and VOSCO (Vietnam Ocean Shipping JSC): working toward greener shipping
In the channel

Where you will find us

A Hyundai truck and bus dealer, a limousine van operator, Grab drivers and the Vietnam Automobile Transportation Association — partners and customers already working with Greentech in Vietnam.

Hyundai Phú LâmCooperation agreement with Greentech, signed in Ho Chi Minh City on 15 November 2024
Hyundai Phú Lâm Customer Day 2024Greentech at the Hyundai truck and bus dealer’s customer day, 15 November 2024
Toàn Thắng LimousineGreentech units handed over at the company’s depot, October 2023
Grab drivers, Ho Chi Minh City20 motorcycles in the 2020 test: 9.5% less fuel on average
Vietnam Automobile Transportation AssociationGreentech among the partners of the VATA conference, 17 December 2022
Next step

Two ways to start

Some people come here because they burn the fuel. Others come because they want to supply or fit the device in their own area. Tell us which you are and the form will ask the right questions.

  1. You tell us which you areThe vehicles or burners you run, or the area you want to cover.
  2. We come back with the specificsModel fit and pricing, or territory and terms.
  3. You order and fitThe device goes in the tank. No engine modification, no downtime.

Greentech Green Environment JSC is the authorised distributor for Vietnam. If you are outside Vietnam, apply through the global distributor programme instead.

Your details go to Greentech Green Environment JSC only. No newsletter, no resale.

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Made in Kaohsiung, Taiwan by Moletech International Technology Ltd. We are one of its authorised distributors.

Manufacturer · Taiwan Moletech International Technology Ltd. Maker of the Greentech Fuel Saver — patented in multiple countries, including US 11,713,737 B1 Visit the manufacturer → India Alga Engineering Solutions LLP Greentech Fuel Saver — Exclusive Distributor for India View distributor → India Niveda Green Greentech Industrial Gas Saving Modules — Authorised Distributor for India View distributor → the Middle East SDB Trading FZ-LLC Greentech Fuel Saver — Authorised Distributor for the Middle East View distributor → Ethiopia TBK Trading PLC Greentech Fuel Saver — Authorised Distributor for Ethiopia View distributor →
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