Unlike fertilizer blended from separate materials,
each compound granule contains a fixed ratio of nitrogen (symbol: N),
phosphate (symbol: P) and potash (symbol: K), facilitating uniform application
of all of the key nutrients. According to the study, NPK fertilizer use in China comprised
only 24% of total fertilizer use in 2002, compared to 50% in developed
countries. The Company has retained KPMG LLP as
its auditors and expects to release its fiscal 2004 audited financial
statements at the end of March 2005.3 million and cash flow of over $1. BASF develops new technologies and uses them to open
up additional market opportunities.

agrochemical phosphide

Farmers use these products
and services to improve yields and quality of agricultural crops. Except for the historical information contained in this
release, all forward-looking statements are estimates by American
Vanguard's management and are subject to various risks and
uncertainties that may cause results to differ from management 's
current expectations. Such factors include weather conditions, changes
in regulatory policy and other risks as detailed from time-to-time in
American Vanguard's SEC reports and filings.

premixed weedicides

Exchange Rate: 6.72 RMB = 1CAD (Bank of Canada March 4, 2005)

About Hanfeng Evergreen
Hanfeng is a leader in China's growing market for urban greening and high
value agricultural products and services. Risks and uncertainties about
the Company's business are more fully discussed in Hanfeng's materials,
including its annual and interim MD+A, filed with the securities regulatory
authorities in Canada from time to time.

phosphide synthesizes

TSX Symbol: HF

TORONTO, March 8 - Hanfeng Evergreen Inc.67G and Fortress(R) as well as Syngenta's Force(R) 3G, licensed in
early 2004."
Ted Bonertz, Global Herbicides Marketing Director for BASF
Corporation, added, "We chose AMVAC as our partner in developing this
new product in North America because of the company's expertise in
development and formulation, as well as its achievements with
previously licensed products."

About American Vanguard

American Vanguard Corporation is a diversified specialty and
agricultural products company that develops and markets products for
crop protection and management, turf and ornamentals management and
public and animal health.

agronomists biostimulants

In addition, as a high-nitrogen compound
fertilizer granule , its nutrient content can reach up to 57% in a 2:1:1 NPK
ratio, a level previously unattained in a compound granule."
The Chinese market for NPK fertilizers, including blended NPK and
compound NPK granules, was forecast to grow from 10 million tonnes in 2002 to
14 million tonnes by 2005 in a study presented by Dmitry Golubkov of JSC
Acron, Russia's largest producer of mineral fertilizers , at the October 2003
International Fertilizer Industry Association Regional Conference for Asia and
the Pacific.
Total annual revenues for 2004 are estimated to be $36 million, an
increase of approximately 40% from $26 million in 2003.

American Vanguard Enters into Exclusive Multi-Year Licensing Agreement with BASF for Post Emergence Corn Herbicide Topramezone

American Vanguard is
included on the Russell 2000(R) and Russell 3000(R) Indexes.

premixed herbicides

The acquired technology is the result of over ten years of research by
the Shanghai government. Currently, there is limited
domestic competition for specialty fertilizers and foreign suppliers are
distributing at a high cost to the customer.

Hanfeng is a first mover in specialty fertilizers in China.com
BASF is the world's leading chemical company: The Chemical
Company.

premixed phytosanitary

"
According to Xinduo Yu, CEO of Hanfeng, "Hanfeng licensed core technology
and know-how from Nu-Gro Corp. However, increasing competition and relatively low
barriers to entry are reducing margins.5 million in 2004.
Hanfeng has chosen to allocate the majority of its capital expenditures
to the expansion of its specialty fertilizer business and expects that this
segment will comprise an increasing percentage of its sales and earnings going
forward. We believe AMVAC will represent our
innovative product well, and we look forward to a mutually beneficial
relationship.com

About BASF

With sales of EUR 3,354 million in 2004, BASF's Agricultural
Products division is a leader in crop protection and a strong partner
to the farming industry providing well-established and innovative
fungicides, insecticides and herbicides . As a reliable partner to virtually all industries, BASF's
intelligent solutions and high-value products help its customers to be
more successful.com

American Vanguard, from time to time, may discuss forward-looking
information.

weedicides vitech

The technology is designed for a 100,000 tonnes
per annum plant, which Hanfeng intends to build. To learn
more about American Vanguard, please reference the Company's web site
at www.
Other uses include public health, structural/urban pest control, turf
and ornamental plants. BASF aims to turn knowledge rapidly into market
success. The vision of BASF's Agricultural Products division is to be
the world's leading innovator, optimizing agricultural production,
improving nutrition, and thus enhancing the quality of life for a
growing world population .

agronomists phytosanitary

This creates an
opportunity for Hanfeng to introduce high-quality, high-nutrient concentration
NPK fertilizers to China. During 2005 Hanfeng's specialty
fertilizer revenues will be largely generated from the Shanghai plant and are
expected to increase to approximately $12 million.

nordiko greatvista

in Canada to build the first sulphur coated
urea (SCU) fertilizer plant in China.

micronutrient agrochemicals

("Hanfeng" or the "Company") has acquired a ten-year exclusive right to
technology for the production of high-concentration urea-based compound
fertilizer by tower granulation.

Strategy Update

China is the largest market for fertilizers in the world with over 50
million tonnes of consumption forecasted for 2005 .
There continue to be growth opportunities for Hanfeng's landscape design
and construction business. The
increasing market demand and government support for specialty fertilizers in
China , in both the urban greening and the agricultural sectors, have increased
Hanfeng's confidence in the size and scope of the growth opportunity. The Company is providing the following
outlook based on preliminary unaudited results.
The Company expects to achieve approximately $24 million in landscape
design and construction revenues for 2004 as estimated previously. Net income and earnings per share for 2004 will be dampened
by the foregoing factors. Earnings per share will be impacted by the financing
required for Hanfeng's increasing investment in specialty fertilizer
production and research and development during 2005.

premixed westbridge

By lowering its cost of goods
and leveraging its brand in the greening business, Hanfeng grew its specialty
fertilizer revenue from $450,000 in 2003 to over $5.
The nursery business is expected to generate revenues of approximately
$6.
Hanfeng expects total revenues to grow in 2005 with net income expected
to be flat or lower. Under the terms
of a licensing and supply agreement, BASF would supply the product to
AMVAC.basf.

fungicides formulator

According to Mr. To enhance its technology, brand and customer service
advantages, Hanfeng will also increase its investments in fertilizer R+D,
customer education and sales training.5 million for 2004 representing more than 40% growth over 2003. Increased revenues in
2004 were offset by a decrease in the gross margins for the landscaping and
nursery businesses, increased G+A for the Canadian office, increases in R+D
and stock option expenses, and the appreciation of the Canadian dollar against
the Chinese RMB.

All forward-looking
statements, if any, in this release represent American Vanguard's
judgment as of the date of this release.

fungicides granule

However, specialty
fertilizers, such as high -nutrient concentration NPK and SCU, are a new
segment. Margin in
this segment for 2004 is expected to be over 45% compared to 72% in 2003. Accordingly, revenues and earnings
from specialty fertilizers are expected to increase significantly in 2006. We
have had great success selling the corn soil insecticides Aztec(R)
4.agriculturalproducts.

fertilizers fungicides

In addition, the NPK fertilizers currently being produced in China
tend to be of lower nutrient concentration and lower quality. Hanfeng has succeeded in building a customer base and a leading brand
in the specialty fertilizer business in China. To capitalize on its first
mover advantage, Hanfeng plans to build a number of specialty fertilizer
plants in key markets in China and intends to focus its human and capital
resources on this goal. Increasingly , Hanfeng's nursery
business is focused on sourcing and developing unique new products for sale to
other nurseries in China. It combines economic success with
environmental protection and social responsibility, thus contributing
to a better future.

treecare formulator

Eric Wintemute, President and CEO of American Vanguard, stated,
"We are extremely pleased to be working with BASF on this product,
which will represent our first launch of a new active ingredient. In 2004, BASF had approximately 82,000 employees
and posted sales of more than EUR 37 billion.

micronutrient greatvista

Going forward, Hanfeng believes that
it will generate better returns by focusing on specialty fertilizer and
nursery products. Hanfeng also established the first private R+D Centre for fertilizer in
China. These forward-looking statements entail various risks and
uncertainties that could cause actual results to differ materially from those
reflected in these forward-looking statements.

nordiko foliar

With this new acquisition of world
leading NPK technology, Hanfeng will be able to provide customers and industry
partners with a low cost, high concentration nitrogen compound fertilizer.6 million from production of
8,700 tonnes since opening in April 2004.

biostimulants synthesizes

Demand for specialty fertilizers is increasing in China due to urban
greening needs and government support for fertilizers used in agriculture that
provide increased nitrogen efficiency and crop yields while decreasing
pollution, as compared to raw urea fertilizers. Hanfeng's landscape design and construction and nursery products
businesses will continue to be key parts of its integrated greening business . The Eco-Nursery will enhance
Hanfeng's product development and customer service and will be used as an
exhibition and product promotion centre. These investments are
expected to result in strong revenue and earnings growth starting in 2006.
BASF submitted the registration data package for the product to
the US and Canadian registration authorities in 2003 and the approvals
are expected in 2005, although there can be no assurances.

agronomists nordiko

Hanfeng acquires exclusive rights to leading fertilizer technology - provides updated strategy and outlook

The compound fertilizer granules produced by this
technology are premium quality because of their uniform round shape and high
concentration of nutrients.

Updated Outlook

The following updates the outlook provided in the Company's press release
and conference call of November 11, 2004. Hanfeng has 104
employees led by an experienced management team based in both China and
Canada.

Business Editors

NEWPORT BEACH, Calif.----

North American Registration Approvals Expected in 2005

American Vanguard Corporation (AMEX: AVD), today announced that
its subsidiary, AMVAC Chemical Corporation , entered into an exclusive
multi-year agreement with BASF Aktiengesellschaft (NYSE: BF) to
develop , register and commercialize Topramezone, a new herbicide for
post-emergent use in corn in North America . During 2004, American Vanguard has been
recognized as one of BusinessWeek's Hot Growth Companies (#93),
Fortune Small Business' America's 100 Fastest Growing Small Companies
(#26) and Forbes ' 200 Best Small Companies #34). Further information can be found on the web
at www.basf.

foliar phosphide

The profitability of Hanfeng's Shanghai slow-release fertilizer plant
after its first eight months of operation has validated the Company's initial
investment in specialty fertilizer production.
Specialty fertilizer revenues are expected to be over $2 million in the
fourth quarter of 2004 and total over $5.

This press release contains forward-looking statements based on current
expectations. Assuming
the registrations are approved along that timeline AMVAC plans to
enter the market in time for the Spring 2006 season.american-vanguard.

greatvista treecare

Hanfeng will increasingly view landscapers and nurseries as
its customers for its innovative fertilizer and nursery products rather than
as competition for projects. The expected decline
in margin is due to competition for larger contracts and the use of
contractors.
Plans are also underway for the 100,000 tonne per annum NPK fertilizer plant
using the technology acquired from SKFETC.

formulator weedicides

In
2005, nursery revenues are expected to grow by approximately 20%, with gross
margin of approximately 40%. Headquartered in Toronto, Canada and
with operations in Dalian, Shanghai and Beijing, China, Hanfeng has its own
production facilities in China and also has exclusive distribution agreements
with leading North American suppliers of fertilizers. This agreement with BASF will enable us to offer another
key tool to the corn farmer .

fungicides synthesizes

Under the terms of the
agreement, Hanfeng will pay SKFETC RMB 3,980,000 (C$590,000) in four payments
based on certain milestones relating to delivery of technical information,
with the last payment due when Hanfeng's plant is operating at 90% capacity. Pan Zhenyu, Senior Researcher of SRICI, "Urea -based
compound fertilizer production is a leading edge technology that is specially
designed to meet the needs of the Chinese fertilizer market, with low
production costs and high nitrogen efficiency . Hanfeng has
been importing and marketing specialty fertilizers in China since 1997 and
since April 2004 has been blending slow-release fertilizer at its Shanghai
plant.
However, consistent with its strategy of focusing its resources on specialty
fertilizers, Hanfeng has chosen to not expand these businesses at the same
rates as previous years.
Hanfeng expects to open the Dalian Eco -Nursery in mid-2005, but does not
plan to expand nursery capacity further in 2005. With
more than $40 million of signed contracts and letters of intent, the
landscaping business is expected to exhibit revenue growth of between 15%
and 20% in 2005, with gross margin of approximately 25%.5 million for 2004, compared to
$450,000 in 2003, marking the successful launch of the Shanghai slow-release
fertilizer plant.
Hanfeng plans to complete construction of its SCU fertilizer plant by
early 2006, which can produce up to 100,000 tonnes per annum at full capacity. Its portfolio ranges from chemicals, plastics , performance
products, agricultural products and fine chemicals to crude oil and
natural gas.

BASF shares are traded
on the stock exchanges in Frankfurt (BAS), London (BFA), New York
(BF) , Paris (BA) and Zurich (AN).

weedicides agrochemical

This technology and related know-how is being
acquired from Shanghai Keyi Fertilizer Engineering Technology Center (SKFETC),
a division of the Shanghai Research Institute of Chemical Industry (SRICI), a
Shanghai government entity. Gross
margin for landscaping in the fourth quarter of 2004 is expected to decrease
to less than 30%, and gross margin for landscaping for the year ended December
31, 2004 is expected to decrease to approximately 36% from 39% in 2003 . The Shanghai plant is expected to generate earnings for 2004
of over $1. Further information on BASF is
available on the Internet at www.