”
Bio Cassava Technology Holdings Limited

(Incorporated in the Cayman Islands with limited liability)
(Stock Code: 8129)
Discloseable Transaction
Relating to a Construction Contract concerning
the Design and Construction of Production Lines and the
Production Centre of Cassava Ethanol
The Board wishes to announce that on 10 September 2007, an indirect wholly-
owned subsidiary of the Company, Yunfu, entered into the Construction Contract
with Feicheng for the design and construction of production lines and the
production centre of Yunfu in Guangdong Province, the PRC for the production and
fermentation of cassava ethanol.
The execution of the Construction Contract and the transactions contemplated
thereunder constitute a discloseable transaction of the Company under the GEM
Listing Rules. A circular containing details of the Construction Contract will be
despatched to Shareholders as soon as practicable.
THE CONSTRUCTION CONTRACT

The Board announces that on 10 September 2007, an indirect wholly-owned
subsidiary of the Company, Yunfu, entered into the Construction Contract with
Feicheng for the design and construction of production lines and the production
centre of Yunfu in Guangdong Province, the PRC for the production and fermentation
of cassava ethanol.
—1—

PRINCIPAL TERMS OF THE CONSTRUCTION CONTRACT
Date: 10 September 2007
Parties: (1) (Yunfu City Jiu Fang
Agriculture Science and Technology Development
Company Limited)
(2) (Feicheng Pyramid Machinery
Co., Ltd.)
To the best of the knowledge, information and belief
having made all reasonable enquiries of the Directors,
Feicheng and its ultimate beneficial owner(s) are
Independent Third Parties.
Construction Services: Feicheng will assist in the technological design of the
production lines for the production and fermentation of
cassava ethanol, including the design, installation and
testing of related processing and manufacturing
pipelines, equipment (including non-standard
equipments) and machineries and will also provide
training to operating staff.
Contract Price: The total contract price is RMB3,930,000
(approximately equivalent to HK$4,087,200), payable
by six instalments and will be funded from internal
resources. The first and second instalments,
representing 30% of the contract price are due within
three days upon execution of the Construction Contract.
The third instalment of RMB1,572,000 (approximately
equivalent to HK$1,634,880) will be payable upon the
arrival of the first batch of manufacturing materials at
the production centre of Yunfu, whereby the fourth
instalment of RMB393,000 (approximately equivalent
to HK$408,720) is to be paid when Yunfu has completed
the necessary installation, including but not limited to
water and electricity supplies and basic equipment and
Feicheng begins installation construction works at the
production centre.
— 2 —

The fifth instalment of RMB393,000 (approximately
equivalent to HK$408,720) is payable upon completion
of the installation of equipment in the production centre
of Yunfu to the satisfaction of Yunfu. The balance of the
contract price of RMB393,000 (approximately
equivalent to HK$408,720) will be payable upon the
conducting of a service quality testing of the
construction works to a satisfactory standard as required
by Yunfu.
The contract price is inclusive of all production
facilities and plant installation.
The contract price was determined based on arm’s
length negotiations taking into account the estimated
costs to be incurred by Feicheng in providing the
construction works and the prevailing market value of
similar construction works.
Term: The Construction Contract will become effective from
the date of execution and all construction works should
be completed before 8 December 2007.
Warranty Period: Pursuant to the Construction Contract, Feicheng agrees
to provide a quality warranty period to Yunfu for a
period of six months upon completion of the
construction works.
Other Condition: It is a term of the Construction Contract that Yunfu will
give Feicheng a prior right to be considered as the
contractor of similar construction contracts in the future
provided that the terms Feicheng are competitive.
REASONS FOR AND BENEFITS OF ENTERING INTO THE CONSTRUCTION
CONTRACT

The entering into of the Construction Contract is consistent with the Group’s strategy
to focus on business opportunities to diversify its products and service offerings
related to biotech and renewable energy market to drive new sources of revenue. In
particular, the Directors believe that the Construction Contract will strengthen the
Company’s strategic position in biotechnology and related manufacturing technology
to convert cassava into ethanol, which can be used as a renewable source of energy.
The Directors believe that the terms of the transactions contemplated under the
Construction Contract are fair and reasonable and in the interests of the Company and
Shareholders as a whole.
— 3 —

GENERAL INFORMATION
The Company is principally engaged in investment holding. The principal activities
of the Company’s subsidiaries comprise (i) development, sales and licensing of
computer software in Hong Kong and the PRC; (ii) patents holding; (iii) investment
holding and (iv) development of biotech and renewable energy.
To the best of the Director’s knowledge, Feicheng is principally engaged in the
designing, manufacturing, installing and setting alcohol and distillers dried grains
with solubles (DDGS) complete equipments.
The execution of the Construction Contract and the transactions contemplated
thereunder constitute a discloseable transaction of the Company under the GEM
Listing Rules. A circular containing details of the Construction Contract will be
despatched to the Shareholders as soon as possible.
DEFINITIONS

“Board” the board of Directors
“Company” Bio Cassava Technology Holdings Limited, a company
incorporated in the Cayman Islands with limited
liability, the shares of which are listed on the Growth
Enterprise Market of ,
Ltd), a company incorporated under the laws of the PRC
“GEM Listing Rules” Rules Governing the Listing of Securities on the Growth
Enterprise Market of The Stock Exchange of Hong
Kong Limited
“Group” the Company and its subsidiaries
“HK$” Hong Kong dollars, the lawful currency of Hong Kong
— 4 —

“Independent Third
Party”
an independent third party not connected with the
Directors, chief executive or substantial shareholders
(as defined in the GEM Listing Rules) of the Company
or any of its subsidiaries or their respective associates
and are not connected persons (as defined in the GEM
Listing Rules) of the Company
“PRC” the People’s Republic of China
“RMB” Renmibi, the lawful currency of the PRC
“Shareholders” the shareholders of the Company
“Yunfu” (Yunfu City Jiu Fang
Agriculture Science and Technology Development
Company Limited), a company incorporated under the
laws of the PRC and an indirect wholly-owned
subsidiary of the Company
By Order of the Board
Bio Cassava Technology Holdings Limited
Leung Lap Yan
Chairman
Hong Kong, 11 September 2007
As of the date hereof, the executive directors are Mr. Kwan Kin Chung, Mr. Tam Kam Biu William, Mr.
Wan Xiaolin and Mr. Chen Man Lung, the non-executive directors are Mr. Leung Lap Yan and Mr.
Leung Lap Fu Warren, the independent non-executive directors are Mr. Ip Chi Wai, Mr. Tse Wang
Cheung Angus and Mr. Shiu Kwok Keung.
This announcement, for which the directors of Bio Cassava Technology Holdings Limited collectively
and individually accept full responsibility, includes particulars given in compliance with the GEM
Listing Rules for the purpose of giving information with regard to the Company. The Directors, having
made all reasonable enquiries, confirm that, to the best of their knowledge and belief:
(1) the information contained in this announcement is accurate and complete in all material respects
and not misleading;
(2) there are no other matters the omission of which would make any statement in this announcement
misleading; and
(3) all opinions expressed in this announcement have been arrived at after due and careful
consideration and are founded on bases and assumptions that are fair and reasonable.

This announcement will remain on the GEM website at http://www.hkgem.com on the “latest company
announcement” page for at least 7 days from the day of its posting.
— 5 —