International Sale of Goods and Commercial Contracts

Introduction and context

Cross-border sales contracts allocate four central risks: what must be delivered, who bears transport and loss, which legal rules govern disputes, and what happens when performance fails. A professionally drafted contract therefore combines substantive sales law, private international law, logistics rules, and commercial risk management.

The United Nations Convention on Contracts for the International Sale of Goods (CISG) is the principal uniform sales convention. Incoterms® 2020, published by the International Chamber of Commerce (ICC), complements but does not replace the contract: Incoterms determine selected delivery, cost and risk obligations, while the CISG governs formation, conformity, remedies and other matters within its scope.

Learning objectives

By the end of this chapter, students should be able to:

• determine whether the CISG applies and explain how it interacts with chosen law;
• distinguish delivery, transfer of risk, title and payment obligations;
• select and draft an appropriate Incoterms® 2020 rule;
• assess warranties, limitation clauses, force majeure and hardship provisions;
• analyze remedies for breach under the CISG;
• identify risks arising from agents, distributors and intermediaries; and
• draft and evaluate governing-law, jurisdiction and dispute-resolution clauses.

1. Contract formation and the CISG

1.1 Scope and applicability

The CISG generally applies to contracts for the international sale of goods where the parties have places of business in different States and either both States are Contracting States or the rules of private international law lead to the law of a Contracting State (CISG Article 1(1)). Consumer purchases, certain auctions, securities, ships, aircraft, electricity and contracts predominantly for services are outside its ordinary scope (Articles 2–3).

Under Article 6, parties may exclude the CISG or vary its provisions. A choice of “the law of Germany” or “the law of Singapore” ordinarily selects that State’s law including its CISG obligations; it does not, by itself, exclude the CISG. A clear clause such as “The CISG is excluded” is needed for exclusion, subject to the chosen law and interpretation of the clause.

The CISG governs formation and the parties’ rights and obligations, but not every issue. It does not generally determine validity, authority, property/title effects, insolvency, product liability outside the sales relationship, or limitation periods. Those matters may be governed by domestic law or another applicable instrument.

1.2 Formation

The Convention distinguishes an offer from an invitation to treat. An offer must be sufficiently definite and indicate an intention to be bound if accepted. Acceptance becomes effective under the Convention when it reaches the offeror, subject to applicable rules on modified acceptances and standard terms. Battle-of-forms disputes require close analysis of the parties’ documents, conduct and applicable domestic rules.

A prudent contract identifies the controlling document, order of precedence, language, currency, quantity, specifications, inspection procedure, delivery term, payment mechanism and amendment process. Incorporation of standard terms should be express and reasonably accessible; a bare reference on an invoice may be ineffective in some legal systems.

2. Incoterms® 2020: delivery, cost and risk

Incoterms are eleven standardized trade terms. They allocate defined obligations concerning delivery, carriage, insurance in selected rules, export and import formalities, costs and risk. They do not decide price ownership, payment, remedies, product conformity, jurisdiction or all tax consequences.

The contract should state the rule, named place and version, for example: “FCA Seller’s warehouse, Rotterdam, Netherlands, Incoterms® 2020.” A named place is essential because the delivery point can determine the moment of risk transfer.

2.1 Common distinctions

• EXW (Ex Works): the seller places goods at disposal at the named place, normally without loading or export clearance. It can create practical export-compliance problems for an overseas buyer.
• FCA (Free Carrier): the seller delivers to the carrier or another person nominated by the buyer and ordinarily completes export formalities. FCA is often more suitable for containerized shipments.
• FOB (Free On Board): the seller delivers when goods are on board the vessel at the named port of shipment. It is not generally suitable for container cargo handed to a terminal before loading.
• CPT/CIP: the seller contracts carriage to the named destination, but risk transfers at the earlier delivery point when goods are handed to the carrier. CIP additionally requires specified cargo insurance.
• DAP/DPU/DDP: the seller bears substantial transport responsibility to destination. Under DAP goods are ready for unloading; under DPU the seller unloads; under DDP the seller also undertakes import clearance and duties, subject to local feasibility.

A frequent error is to confuse payment of freight with risk. In a “C” rule, the seller may pay carriage to destination while the buyer bears risk from the earlier delivery point. Each Incoterms rule operates independently. EXW does not transition into FCA, and FCA does not transfer risk by reference to EXW; the parties must select one rule and identify its delivery point.

2.2 Insurance and documentary alignment

CIP requires broader insurance than CIF under Incoterms® 2020, subject to the specified minimum cover and contractual requirements. If the buyer requires all-risk cover, war-risk cover or a particular insurer, the contract should say so expressly. The sales contract should also align transport documents, inspection certificates, certificates of origin, letters of credit and electronic-document procedures.

3. Conformity, warranties and inspection

Under CISG Articles 35–44, goods must conform in quantity, quality, description, packaging and fitness for ordinary or expressly communicated purposes. Contractual specifications and samples are especially important. A seller may be liable for third-party intellectual-property claims under Article 42, subject to the Convention’s conditions.

The buyer should examine goods within as short a period as practicable and give sufficiently specific notice of non-conformity within a reasonable time (Articles 38–39). Article 39 contains an outside two-year period from actual handover unless inconsistent with a contractual guarantee period. The buyer may lose remedies if notice is late, although Article 44 can provide limited relief where the buyer has a reasonable excuse and permits specified remedies.

A warranty clause should distinguish:

1. the promised characteristics;
2. the warranty period and its starting date;
3. permitted use and maintenance conditions;
4. inspection and notice procedures;
5. repair, replacement, refund or price-reduction remedies; and
6. exclusions, liability caps and mandatory-law limits.

A contractual warranty supplements rather than automatically displaces CISG conformity duties. Drafting should state whether a warranty is exclusive and whether liability for fraud, death, personal injury or deliberate misconduct can legally be limited.

4. Risk, title and payment

Risk under the CISG generally passes according to Articles 66–70, but a chosen Incoterms rule often specifies the practical delivery and risk point. Risk and title are distinct. Incoterms do not transfer ownership. Title may pass on delivery, payment, identification of goods or another event under applicable domestic law.

Payment structures include open account, advance payment, documentary collection, letter of credit and escrow. A letter of credit is typically autonomous from the underlying sales contract: banks examine documents rather than the physical goods, subject to applicable banking rules such as UCP 600 when incorporated. The contract should address currency, bank charges, sanctions screening, late-payment interest, set-off and documentary discrepancies.

5. Breach and CISG remedies

The CISG seeks to place the aggrieved party in the position it would have occupied had the contract been properly performed, subject to foreseeability and mitigation.

Principal buyer remedies include requiring performance, repair where reasonable, price reduction, damages and avoidance for fundamental breach. The seller may require payment, acceptance and performance, claim damages, fix an additional period for performance, or declare the contract avoided in appropriate circumstances.

A breach is fundamental when it substantially deprives the other party of what it was entitled to expect, unless that result was not reasonably foreseeable. Avoidance is therefore more serious than an ordinary delay or minor defect. Damages under Article 74 include loss of profit but are limited to losses foreseeable at the time of contracting. The injured party must take reasonable steps to mitigate loss (Article 77).

If a contract is avoided and a substitute purchase or resale occurs reasonably and promptly, Article 75 permits the difference between the contract price and substitute transaction price, plus other recoverable loss. Without a substitute transaction, Article 76 uses the current price at the relevant place and time, subject to the Convention’s conditions. These remedies must not be double-counted.

6. Force majeure and hardship

6.1 CISG Article 79

Article 79 provides an exemption from damages where a party proves that failure was due to an impediment beyond its control, that it could not reasonably have been expected to take the impediment into account when the contract was concluded, and that it could not avoid or overcome the impediment or its consequences. The exemption lasts only for the period during which the impediment exists.

The party must notify the other party of the impediment and its effect on ability to perform. If notice is not received within a reasonable time after the party knew or ought to have known, the defaulting party is liable for losses caused by the lack of notice. Article 79 is not a general cancellation provision: it normally excuses damages, but does not automatically terminate the contract or eliminate every other remedy. The other party may still have rights such as requiring performance where available, reducing price, or avoiding the contract when the Convention’s conditions are met.

An impediment may include exceptional governmental restrictions, war, natural disaster or a supply failure that genuinely satisfies the Article 79 tests. Ordinary price increases, foreseeable market difficulty, poor cash flow or reliance on a subcontractor will not automatically qualify. A seller remains responsible where it could reasonably obtain substitute performance, unless the relevant circumstances make that impossible or legally prohibited.

6.2 Contractual force-majeure clauses

A clause should define covered events, causation, notice, evidence, mitigation, partial performance, allocation of additional costs, suspension, termination and the relationship with Article 79. “Force majeure” has no single universal meaning; its legal effect depends on the wording and governing law. If no contractual force-majeure clause exists, analysis proceeds principally under CISG Article 79 and any applicable domestic rules for issues outside the CISG.

6.3 Hardship

Hardship concerns a substantial change that makes performance excessively burdensome, rather than impossible. The CISG does not contain an express general hardship article, and legal systems differ on adaptation, renegotiation and termination. Parties should therefore draft a hardship mechanism: trigger threshold, renegotiation period, information duties, interim performance, expert or arbitral adjustment, and termination if adjustment fails. The UNIDROIT Principles may provide persuasive guidance when incorporated or used interpretively, but they do not automatically govern.

7. Applicable law, jurisdiction and dispute resolution

A governing-law clause should identify whether it selects the CISG-inclusive law or expressly excludes the CISG. Example:

“This contract and all non-contractual obligations arising from it are governed by the law of Singapore. The United Nations Convention on Contracts for the International Sale of Goods applies. Matters outside the CISG are governed by Singapore law.”

An exclusion version could state:

“The CISG is expressly excluded. This contract is governed by the substantive law of Singapore, excluding its conflict-of-laws rules.”

A jurisdiction clause should specify exclusive or non-exclusive jurisdiction, courts and a legally meaningful connecting forum. Arbitration clauses should identify the institution or ad hoc rules, seat, language, number of arbitrators and confidentiality provisions. The seat determines the procedural law and supports enforcement under the New York Convention; the hearing venue need not be the seat.

Drafting must also consider mandatory product-safety, export-control, sanctions, anti-bribery, competition and data-protection rules. A choice-of-law clause cannot reliably displace all mandatory public law.

8. Agency, distribution and intermediary risks

An agent usually promotes or negotiates transactions for a principal; a distributor buys and resells in its own name and account. The distinction affects authority, ownership of goods, competition law, termination compensation, inventory, customer data and tax presence.

An agency agreement should address authority limits, territory, commission calculation, reporting, compliance, conflicts, confidentiality, intellectual property, audit rights, termination and post-termination claims. The principal should verify whether local commercial-agent legislation grants mandatory notice or compensation rights.

A distribution agreement should address exclusivity, minimum purchases, resale prices only within competition-law limits, online sales, parallel imports, warranty handling, recalls, stock on termination, trademarks, service levels and governing law. Avoid imposing resale prices that may constitute unlawful resale-price maintenance. Due diligence should assess beneficial ownership, sanctions, anti-corruption exposure and the intermediary’s actual authority.

9. Structured clause-assessment exercise

Consider this clause:

“Seller shall deliver the goods DAP Singapore, Incoterms 2020. German law governs. The CISG is excluded. Seller is not liable for any delay caused by events beyond its control. Singapore courts shall have exclusive jurisdiction.”

Assess it using the following sequence:

1. Delivery: DAP requires delivery at destination ready for unloading; identify the exact place and unloading responsibility.
2. Risk: risk transfers at the DAP delivery point, not when the seller merely pays freight.
3. Law: German law with express CISG exclusion selects German domestic sales law, subject to mandatory rules.
4. Delay: “beyond its control” is vague. Add notice, mitigation, causation, duration, partial performance and termination rules. If exclusion were deleted, Article 79 would be central.
5. Forum: exclusive Singapore jurisdiction is clear, but assess enforceability, service, interim relief and whether arbitration would provide better cross-border enforcement.
6. Missing terms: price and currency, payment, specifications, inspection, warranty, limitation of liability, title, sanctions, export/import duties, language and document precedence.

This exercise demonstrates that a clause can be grammatically clear yet commercially incomplete.

10. Illustrative applied case

Background

NordWerk GmbH in Germany sells industrial pumps to Meridian Pte Ltd in Singapore. Both Germany and Singapore are CISG Contracting States. The contract states: “Singapore law governs. FCA NordWerk warehouse, Hamburg, Incoterms® 2020.” It contains no contractual force-majeure clause. Payment is by bank transfer, and the pumps must meet stated pressure and efficiency specifications.

Problem

NordWerk delivers the pumps to the carrier nominated by Meridian after completing export formalities. During transit, a newly imposed government prohibition prevents import into Singapore for three months. On arrival, two pumps fail the agreed efficiency test. Meridian refuses the entire shipment and claims lost resale profits.

Analysis

The parties have places of business in different Contracting States, so CISG Article 1(1)(a) ordinarily applies. The choice of Singapore law does not itself exclude the CISG. The contract’s FCA term means risk generally passed when the goods were delivered to the nominated carrier at the named FCA point. The seller’s payment of inland or other carriage costs, if any, would not by itself shift that risk point.

The import prohibition may constitute an Article 79 impediment if NordWerk’s particular failure was caused by an uncontrollable, unforeseeable and unavoidable or insurmountable legal barrier. However, Article 79 must be applied to the specific obligation. It may excuse damages for failure to perform an affected obligation during the prohibition; it does not automatically excuse pre-existing non-conformity, and it does not automatically terminate the contract. NordWerk also had a duty to notify Meridian within a reasonable time.

The efficiency defects are analyzed separately under Articles 35 and 36. If the pumps failed contractual specifications when risk passed, the seller is responsible notwithstanding the later import prohibition. Meridian must examine and notify non-conformity within the Convention’s requirements. Rejection of all pumps may be disproportionate unless the breach is fundamental or the contractual arrangement makes the units inseparable. Meridian must mitigate lost resale losses and prove foreseeability under Article 74.

Outcome and drafting response

A tribunal would likely separate the transport/import impediment from the pre-existing conformity breach. It might deny damages for an adequately proven Article 79 period while preserving remedies for defective pumps. The result depends on evidence concerning government timing, alternatives, notice, inspection and the commercial significance of the defects.

A revised contract should specify the exact FCA point, testing method, acceptance procedure, notice periods, insurance and import-responsibility allocation, and include a tailored force-majeure and hardship clause. It should also state whether Singapore law includes or excludes the CISG rather than leaving that question to inference.

Challenges and limitations

Uniform rules reduce uncertainty but do not eliminate interpretive differences among courts. Incoterms do not solve title, payment or product-liability questions. A force-majeure clause may create new ambiguity if it lists events without causation or mitigation requirements. Digital trade platforms create authentication, electronic-record, cybersecurity and evidence issues. AI-assisted drafting can identify missing clauses and compare versions, but lawyers must verify legal citations, authority, sanctions screening, data confidentiality and jurisdiction-specific enforceability; generated text is not legal advice or due diligence.

Best-practice drafting checklist

Before signature, confirm: parties and authority; goods and specifications; price and currency; Incoterms rule, version and named place; transport and insurance; inspection and notice; payment security; title; CISG inclusion or exclusion; governing law; court or arbitration mechanism; warranties; limitation of liability; Article 79 relationship; hardship; sanctions and export controls; data and confidentiality; agency or distribution status; language; document priority; amendment and electronic-signature method.

Chapter Summary

International sales contracts combine the CISG with domestic law, Incoterms® 2020 and commercial drafting. The CISG ordinarily applies to sales between parties in different Contracting States unless validly excluded; selecting a Contracting State’s law does not itself exclude it. Incoterms allocate delivery, cost and risk but not title, payment or all remedies. Conformity, timely notice, fundamental breach, damages, mitigation and avoidance are central CISG concepts. Article 79 may exempt damages for a qualifying impediment but requires proof, causation and timely notice and does not automatically cancel the contract. Hardship should be addressed expressly. Clear clauses on law, forum, warranties, logistics, intermediaries and compliance materially reduce cross-border risk.

Key Terms

CISG: United Nations Convention governing many international sales of goods.

Contracting State: State bound by the CISG.

Incoterms® 2020: ICC rules allocating specified delivery, cost and risk obligations.

Delivery point: Contractual place and event at which delivery occurs.

Risk transfer: Allocation of accidental loss or damage between seller and buyer.

Conformity: Compliance of goods with contractual and CISG requirements.

Fundamental breach: Breach substantially depriving the other party of expected benefit.

Avoidance: Ending the contract under applicable CISG conditions.

Mitigation: Reasonable steps to reduce loss after breach.

Force majeure: Contractual allocation of exceptional impediments to performance.

Article 79 exemption: CISG exemption from damages for qualifying uncontrollable impediments.

Hardship: Excessive burden caused by a substantial change in circumstances.

Warranty: Contractual promise concerning goods or performance.

Governing law: Law selected to regulate the contract.

Jurisdiction: Authority of a court or tribunal to decide a dispute.

Seat of arbitration: Legal place governing arbitral procedure and supervision.

Agent: Intermediary acting for a principal, usually with delegated authority.

Distributor: Independent reseller buying and reselling in its own account.

Documentary credit: Bank payment mechanism based principally on complying documents.

Review Questions

Short Answer Questions

1. Why does choosing Singapore law ordinarily not exclude the CISG?
2. Distinguish risk transfer from transfer of title.
3. What is the principal difference between FCA and EXW?
4. State the main elements of a CISG Article 79 exemption.
5. Why are inspection and notice important under CISG Articles 38–39?

Long Answer Questions

1. Explain the scope, exclusions and practical significance of the CISG in international sales.
2. Compare EXW, FCA, CIP and DAP, including delivery, cost and risk allocation.
3. Analyze CISG remedies for non-conforming goods and the role of mitigation.
4. Explain how a well-drafted force-majeure clause should interact with Article 79.
5. Discuss the legal and commercial differences between agency and distribution.

Analytical / Application Questions

1. Draft a governing-law clause that applies the CISG and Singapore supplementary law, then draft an alternative clause that expressly excludes the CISG.
2. A seller using CIP pays freight to destination, but goods are damaged after handover to the first carrier. Analyze risk and identify facts that could alter the result.
3. Evaluate the illustrative NordWerk–Meridian case, separating the import prohibition, defective goods, notice, Article 79, avoidance and damages issues.

Multiple Choice Questions with Answers

Question 1

Germany and Singapore are both CISG Contracting States. The contract selects Singapore law but says nothing about the CISG. What is the ordinary result?

A. The CISG ordinarily applies

B. Singapore domestic sales law automatically excludes the CISG

C. German law applies instead

D. No sales law applies

Correct Answer: A. The CISG ordinarily applies

Question 2

Which statement best describes Incoterms® 2020?

A. They determine ownership in every sale

B. They allocate specified delivery, cost and risk obligations

C. They replace the CISG entirely

D. They determine the validity of every contract

Correct Answer: B. They allocate specified delivery, cost and risk obligations

Question 3

Under FCA, risk ordinarily transfers when:

A. The buyer pays the invoice

B. The goods reach the final destination

C. The seller delivers to the nominated carrier at the agreed point

D. Title is registered in the buyer’s name

Correct Answer: C. The seller delivers to the nominated carrier at the agreed point

Question 4

Under a typical CIP transaction, which statement is correct?

A. Risk always transfers at the destination

B. The seller pays carriage, while risk generally transfers at handover to the first carrier

C. The buyer must arrange all insurance

D. CIP is limited to non-commercial goods

Correct Answer: B. The seller pays carriage, while risk generally transfers at handover to the first carrier

Question 5

Which is required for a CISG Article 79 exemption?

A. Any increase in production cost

B. A qualifying impediment beyond control that could not reasonably be avoided or overcome

C. The buyer’s dissatisfaction with price

D. A seller’s decision to change suppliers for convenience

Correct Answer: B. A qualifying impediment beyond control that could not reasonably be avoided or overcome

Question 6

Article 79 normally concerns exemption from:

A. All contractual obligations forever

B. Damages for failure caused by a qualifying impediment

C. Every obligation to notify the other party

D. All product-conformity duties arising before the impediment

Correct Answer: B. Damages for failure caused by a qualifying impediment

Question 7

What is a fundamental breach under the CISG?

A. Any one-day delay

B. A breach substantially depriving the other party of expected contractual benefit

C. Any breach mentioned in an invoice

D. A breach that automatically proves fraud

Correct Answer: B. A breach substantially depriving the other party of expected contractual benefit

Question 8

Which clause most clearly excludes the CISG?

A. Singapore law governs

B. The parties choose an international contract

C. The CISG is expressly excluded and Singapore substantive law governs

D. The seller’s country law applies

Correct Answer: C. The CISG is expressly excluded and Singapore substantive law governs

Question 9

A distributor generally:

A. Acts only as the principal’s employee

B. Buys and resells goods in its own name and account

C. Has no commercial relationship with customers

D. Can never have competition-law obligations

Correct Answer: B. Buys and resells goods in its own name and account

Question 10

Which loss-control principle is reflected in CISG Article 77?

A. The injured party must take reasonable steps to mitigate loss

B. The injured party may deliberately increase losses

C. All lost profits are automatically recoverable

D. Mitigation applies only to arbitration costs

Correct Answer: A. The injured party must take reasonable steps to mitigate loss