5

5.1

10020002020

1. 2. 3.

Bill of ExchangeDraftBill of exchange defined in Bill of Exchange Act, 1882A bill of exchange is an unconditional order in writing, addressed by one person to another, signed by the person giving it, requiring the person to whom it is addressed to pay on demand, or at a fixed or determinable future time a sum certain in money to or to the order of a specified person, or to bearer.

drawer drawee, payer payee200210130

EXCHANGE FOR USD41,084.34 Cambridge 8th April 19 98At Sight pay this Second Bill of Exchange First of same tenor and date unpaid to the Order of Unicam Limited Atomic Absorption, PO Box 207, York Street, Cambridge CB1 2SU Drawn under Irrevocable Documentary Credit No.LC42198103A of Industrial + Commercial Bank of China, China. US Dollars Fortyone Thousand & Eightyfour Dollars .34Value Received Which place to AccountTo INDUSTRIAL + COMMERCIAL BANK UNICAM LIMITED OF CHINA BILL NO: 5765 ATOMIC ABSORPTION CHINA 100032-1

1 2

USD41,084.34 19 9848 Unicam Limited Atomic Absorption, PO Box 207, York Street, Cambridge CB1 2SU.LC42198103A34 UNICAM LIMITED ATOMIC ABSORPTION

Bill of Exchange 1 2 3

ABC /ABCBearerThe orderof ABC

Cheque, Check A cheque is an unconditional order in writing, drawn on a banker, signed by the drawer, requiring the banker to pay on demand a sum certain in money to a specified person, or to bearer.

Promissory Note A promissory note is an unconditional promise in writing made by one person to another, signed by the maker, engaging to pay, on demand or at a fixed or determinable future time a sum certain in money to, or to the order of, a specified person, or to bearer.

200210130

1

PROMISSORY NOTE

60,000.00 London, 15th May, 2002Three months after date I promise to pay John Tracy or order the sum of SIXTY THOUSAND POUNDS for value received.

William Taylor

2 ASIAN INTERNATIONAL BANK, LTD18 Queens Road, Hong KongCASHIERS ORDERHong Kong, 8th August 2002

Pay to the order of Dockfield & Co. the sum of Hong Kong Dollars Eighty Thousand and Eight Hundred only. For Asia International Bank, Ltd.

HK $80,800.00Manager

3 International Money Order

INTERNATIONAL MONEY ORDERMANUFACTURERS HANOVER TRUST COMPANYNEW YORK, N.Y. 10015PAY TO THE ORDER OF ______________ _______________19 PAY AT YOUR BUYING RATE FOR EXCHANGE ON NEW YORK UNITED STATES DOLLARS George D. Schiela NOT VALID UNLESS COUNTER SIGNED ABOVEMaximum of two thousand five hundred (USD2,500.00) U.S.Dollars Henry C. Prahel AUTHORIZED SIGNATUREMANUFACTURERS HANOVER TRUST CO.NEW YORK, N.Y. 10015 AMOUNT

4 Travellers Cheque

TRAVELLERS CHEQUE FOR TWENTY DOLLARS$20 $20 _________________________ _________19____ COUNTER-SIGN HERE IN THE PRESENCE OF PAYING CASHIER PLACE AND DATETHOS.COOK & SON (BANKERS) LTDNEW YORK AGENCYUPON PRESENTATION OF THIS CHEQUE COUNTERSIGNED BY THE PERSON WHOSE SIGNATURE IS SHOWN BELOW WILL

Pay to the Order of ______________________________SIGNATURE For THOS.COOK & SON (BANKERS)LTDOF HOLDER_________________________ CHAIRMAN

IN UNITED STATESIN OTHER COUNTRIESTWENTY DOLLARS $20THE EQUIVALENT AT BANKERS BUYING RATE FOR SIGHT DRAFTS ON NEW YORK

5 Central Bankers NotesCentral Bank Notes( P39, 30)

The Hongkong and Shanghai Banking Corporation LimitedPromises to pay the bearer on demand at its Office hereTWENTYHONGKONG DALLARS By order of the Board of Directors

EXECUTIVE DIRECTOR 20

5.2 Remittance

Mail TransferM/TTelegraphic TransferT/T

Remittance by Bankers Demand DraftD/D

M/TT/T

HBITC Unicam

BOCHB Midland Bank

12345TelegramTelexSwiftT/TM/TUincam 1TelegramTelex Swiftsociety of world-wide interbank financial telecommunication

D/D

HBITC Unicam

BOCHB Midland

12345

T/T M/T D/D telegram, telex, SWIFT test keySWIFT Authentication Key

Collection

Documents against PaymentD/PDocuments against AcceptanceD/A

D/P

HBITC Unicam

ICBCHB Midland123+ 54+6789101112 Unicam1

D/P

HBITC Unicam

ICBCHB Midland123+ 54+6789101112

D/A

HBITC Unicam

ICBCHB Midland123+ 54+6710 891112

D/P D/P D/A

/D/P101101101103D/P 3030101101111111113D/A 3030101101111101103

D/P D/P T/R: D/PP211Trust Receipt, ,

D/PT/R D/A D/P/022200411

D/PT/RD/AD/P/ +

/

/

Uniform Rules for Collection, ICC Publication No.522 522URC5221996 1958

Collection defined in URC522Article 2 Definition of CollectionFor the purposes of these Articles: a. Collection means the handling by banks of documents as determined in Sub-Article 2 (b), in accordance with instructions received, in order to i) obtain payment and /or acceptance, orii) deliver documents against payment and/or against acceptance, oriii) deliver documents on other terms and conditions.

b. Documentsmeans financial documents and/or commercial documents: i) financial documents means bills of exchange, promissory notes, cheques, or other similar instruments used for obtaining the payment of money,ii) commercial documentsmeans invoices, transport documents, documents of title or other similar documents, or any other documents whatsoever, not being financial documents.

URC5222

a. 2(b)i) /ii) /iii)

b. /i) ii)

Letter of Credit L/C

HBITC UNICAM

ICBCHB Midland Bank 1234 567891011121314

1/6*Own AddressICBKCNBJHUB INDUSTRIAL AND COMMERCIAL BANK OF* CHINA* WUHAN* HUBEI PROVINCIAL BRANCH*Input Message Type700 ISSUE OF A DOCUMENTARY CREDIT*Sent to MIDLGB22XXXX MIDLAND BANK PLC* LONDON* ALL U.K.OFFICES)*Priority/Obsol.Period: Normal/100 Minutes*27 /SEQUENCE OF TOTAL* 1/2*40A/FORM OF DOCUMENTARY CREDIT* IRREVOCABLE*20 /DOCUMENTARY CREDIT NO.* LC42198103A*31C/DATE OF ISSUE* 980226* 98-02-26*31D/DATE AND PLACE OF EXPIRY* 980515 IN U.K.* 98-05-15

2/6*50 /APPLICANT* HUBEI PROVINCIAL INTERNATIONAL* TRADE CORPORATION* 4, JIANGHAN BEILU, WUHAN, CHINA*59 /BENEFICIARY* UNICAM LIMITED ATOMIC ABSORPTION* PO BOX 207, YORK STREET, CAMBRIDGE* CB1 2SU ENGLAND* FAX: 01223 374437 TEL: 01223 358866*32B /CURRENCY CODE AMOUNT* USD41084.34* US Dollar* 41084.34*41D/AVAILABLE WITH/BY-NAME, ADDRESS* ANY BANK* BY NEGOTIATION*42C/DRAFTS AT* SIGHT FOR 100 PCT OF THE INVOICE VALUE*42A/DRAWEE BIC* ICBKCNBJHUB* INDUSTRIAL AND COMMERCIAL BANK OF CHINA* WUHAN* (HUBEI PROVINCIAL BRANCH)

3/6*43P/PARTIAL SHIPMENTS* NOT ALLOWED*43T/TRANSSHIPMENT* ALLOWED*44A/ON BOARD/DISP/TAKING CHARGE* MAIN BRITISH AIRPORTS*44B/FOR TRANSPORTATION TO * WUHAN AIRPORT CHINA*44C/LATEST DATE OF SHIPMENT* 980430* 98-04-30*45A/DESCR GOODS AND/OR SERVICES* COMMODITY* 989 AA SPECTROMETER AND ACCESSORIES ONE SET USD28,000.00* CATALOG NUMBER 942339692352* HELOIS ALPHA PRISM SYSTEM SPECTORMETER ONE SET USD8,000.00* AND ACCESSORIES* P/N 9423UVA1000E* HELOIS GAMMA UV-VISIBLE SPECTROMETER ONE SET USD5,084.34* P/N 9423UVG1000E* TOTAL: USD41084.34* CIF WUHAN AIRPORT, PACKING CHARGES INCLUDED.

4/6* PACKING: BY STANDARD EXPORT PACKING* MANUFACTURER: UNICAM LIMITED, U.K.* SHIPPING MARK: 98FGQM49-9001CE(LZH)* WUHAN CHINA *71B/CHARGES* ALL BANKING CHARGES AND INTEREST* IF ANY OUTSIDE THE OPENING BANK* WILL BE BORNE BY THE BENEFICIARY*48 /PERIOD FOR PRESENTATION* 15 DAYS*49 /CONFIRMATION INSTRUCTIONS* WITHOUT*78 /INSTRUCTIONS TO PAY/ACC/NEG BK* ALL DOCUMENTS MUST BE FORWARDED TO INDUSTRIAL N* COMMERCIAL BANK OF CHINA HUBEI PROVINCIAL BRANCH HANKOU* OFFICE ADD: 1/F., JINMAO BLDG. 4 NORTH JIANGHAN ROAD HANKOU,* CHINA IN ONE COVER UPON RECEIPT OF DOCUMENTS DRAWN IN * COMPLIANCE WITH TERMS AND CONDITIONS OF THE CREDIT, WE* SHALL REIMBURSE YOU BY TT ACCORDING TO YOUR INSTRUCTIONS.*72 /SENDER TO RECEIVER INFORMATION* /TELEBEN/

5/6*27 SEQUENCE OF TOTAL* 2/2*20 /DOCUMENTARY CREDIT NO.* LC42198103A*46B/DOCUMENTS REQUIRED* +SIGED COMMERCIAL INVOICE IN 4 COPIES MENTIONING CONTRACT* NO. 98FGQM49-9001CE(LZH) AND L/C NO.42198103A. * +AIR WAYBILLS SHOWING FREIGHT PREPAID INDICATING FREIGHT* AMOUNT AND CONGINED TO APPLICANT.* +INSURANCE POLICY/CERTIFICATE IN 2 FOR 110 PCT OF THE INVOICE* VALUE SHOWING CLAIMS PAYABLE IN CHINA IN CURRENCY OF THE* DRAFT, BLANK ENDORSED, COVERING AIR TRANSPORTATION ALL* RISKS.* +PACKING LIST/WEIGHT MEMO IN 4 COPIES INDICATING * QUANTITY/GROSS AND NET WEIGHTS OF EACH PACKAGE AND* PACKING CONDITIONS AS CALLED FOR BY THE L/C.* +CERTIFICATE OF QUALITY IN 2 COPIES ISSUED BY MANUFACTURER.* +BENEFICIARYS CERTIFIED COPY OF FAX DISPATCHED TO THE * ACCOUNTEES WITHIN 24 HOURS AFTER SHIPMENT ADVISING B/L NO.* SHIPPING DATE, CONTRACT NO.

6/6*47B/ADDITIONAL CONDITIONS* +A FEE OF USD30.00 (OR EQUIVALENT IN OTHER CURRENCY) WILL BE* DEDUCTED FROM THE PROCEEDS OF DRAWING FOR EACH SET OF * DOCS PRESENTED WITH DISCRIPANCY(IES).* +DOCUMENTS ISSUED EARLIER THAN L/C ISSUING DATE ARE NOT* ACCEPTABLE.

CIF

documentary creditclean credit

2.

revocable L/CRevocable, This credit is subject to cancellation at any time without prior notice to you.irrevocable L/CIrrevocable,

3.

Confirmed L/CUnconfirmed L/C

4.

credit (available) by negotiationcredit (available) by paymentcredit (available) by acceptance////

5. L/CL/CL/CL/C

// sight credit usance credit

L/CL/CL/C

L/CL/CL/C

6. transferable Credit

Back-to-back Credit

1234 56 789

1234 57 91112 6810

UCP50048

7. revolving credit

2. 12312

This credit is available for up to USD15000 per month during January 2002 to May 2002. The aggregate amount under this credit is USD75000.

This credit is available for up to USD15000 per month during January 2002 to May 2002. The aggregate amount under this credit is USD75000.

The amount of credit (USD15,000) shall be renewable twice automatically after date of negotiation, thus making an aggregate amount of USD45,000.(USD15,000)USD45,000.

Should the Negotiating Bank not be advised of stopping renewal within 7 days after each negotiation, the amount of this credit shall be increased to the original amount on the 8th day after each negotiation.78

The amount of credit shall be renewal after each negotiation only upon receipt of issuing banks notice stating that credit might be renewal.

This credit is revolving at USD100,000 covering shipment of _________ per calendar month cumulative operation from January 2002 to June 2002 inclusive up to a total of USD600,000USD100,000 _________ 2002200266USD600,000

This credit is revolving for three shipments only. Each shipment should be effected at one month interval. The amount of each shipment is not exceeding USD50,000. The total value of this revolving credit does not exceed USD150,000. The unused balance of each shipment is not cumulative to the following shipment. USD50,000USD150,000

Uniform Customs and Practice for Documentary Credits, ICC Publication No.600 60020062007

1929

Credits defined in UCP600 1/2 (2007 )Article 2 Definitions

For the purposes of these rules, Credit means any arrangement, however named or described, that is irrevocable and thereby constitutes a definite undertaking of the issuing bank to honour a complying presentation. Honour means: a. to pay at sight if the credit is available by sight payment. b. to incur a deferred payment undertaking and pay at maturity if the credit is available by deferred payment. c. to accept a bill of exchange (draft) drawn by the beneficiary and pay at maturity if the credit is available by acceptance.

Credits defined in UCP600 1/2 (2007 ) Issuing bank means the bank that issues a credit at the request of an applicant or on its own behalf. Complying presentation means a presentation that is in accordance with the terms and conditions of the credit, the applicable provisions of these rules and international standard banking practice. Applicant means the party on whose request the credit is issued. Beneficiary means the party in whose favour a credit is issued.

UCP600 1/2 a. b. c.

UCP600 2/2

UCP600 500600

500600

UCP600UCP600UCP600UCP600 UCP600

/

Bankers Letter of Guarantee1

22.1 PrincipalApplicant2.2 Beneficiary2.3 Guarantor

3

Accessory Guarantee

Independent Guarantee

44.1 4.2 4.3

5Uniform Rules for Contract GuaranteeICC Publication No.325 3251978URCG325

Uniform Rules for Demand GuaranteeICC Publication No.458 4581992URDG458

6

//URCG325URDG458UCP500

Standby L/C P222

2199846560International Standby Practice 98 ISP98ISP98199911ISP981089

ISP981.06 1 2 3/

ISP98UCP500

1P210swiftPayment of drafts drawn hereunder will be made only after the realization of the re-export proceeds program.

2 swift

(12) Terms of paymentPayment by L/C: One month before shipment, the buyer shall establish with its bank an Irrevocable L/C in favour of the seller, to be available against presentation of the shipping documents stipulated in Clause 13 hereof.Payment by collection: After delivery is made, the seller shall send through the sellers bank a draft drawn on the buyer together with the shipping documents stipulated in Clause 13 hereof, to the buyer through the buyers bank for collection.Payment by T/T: Payment to be effected by the buyer not later than days after receipt of the shipping documents in Clause 13 hereof.

T/T M/T D/D D/P D/A D/PT/R L/C

5.1 5.2 5.3 T/TD/D5.4 D/P5.5 L/C5.6 ?5.7 5.8 D/P D/A D/PT/R

AB BB A

CD DE CEEECEDC