Winning a VND 12 Billion EPC Dispute with Emails: Case Study

Winning a VND 12 Billion EPC Dispute with Emails: Case Study and 5 Lessons

Case facts have been anonymized and simplified; party names, locations and some details changed for confidentiality. The VND 12 billion figure is an illustrative disputed value per the topic brief; details have been generalized.

In EPC (engineering–procurement–construction) disputes, "variations" are the classic trigger: contractors perform extra work on verbal orders, and owners later deny them for lack of signed appendices. The case below — with nearly VND 12 billion recovered — shows how well-governed email chains can become the "savior".

Contents

• 1. Case background
• 2. The deadlock: no signed appendix
• 3. The turning point: the email chain
• 4. Legal reasoning: why the court accepted the emails
• 5. Outcome
• 6. Five project email governance lessons
• 7. Frequently asked questions
• 8. When to work with a lawyer
• References

1. Case background

The contractor (Party A) signed an EPC contract to build an industrial plant for the owner (Party B). During construction, Party B repeatedly ordered design changes and additional items for new technology — all via site management instructions and daily email exchanges.

At final settlement, Party B only paid per the original contract, rejecting nearly VND 12 billion in variations: "no appendix, no handwritten document".

2. The deadlock: no signed appendix

A situation thousands of contractors face: tight schedule, owner urging "work first, paperwork later", then at payment time "no paperwork, no payment". Party A's file then contained:

• The original EPC contract (clause: all changes require written appendix);
• Site diaries and field records — but many items lacked Party B's countersignature;
• And an email chain exchanged between the two sides throughout construction.

3. The turning point: the email chain

Reviewing all emails, Party A's lawyers reconstructed the full picture:

• Variation orders: emails from Party B's authorized personnel (corporate domain) requesting design changes with clear scope;
• Quantity confirmation: back-and-forth emails confirming completed quantities per phase, with calculation sheets;
• Payment confirmation: emails from Party B confirming variations would enter payment — corroborated by actual payment records.

The three links "order – quantity confirmation – payment confirmation" formed a closed evidentiary chain.

4. Legal reasoning: why the court accepted the emails

Key legal grounds:

• Law on Electronic Transactions 20/2023 (effective 01/7/2024): data messages have documentary value when integrity and extractability conditions are met;
• Civil Procedure Code 2015: data messages are a form of evidence.

Party A's arguments:

1. Sender authentication: corporate-domain emails from authorized personnel — sufficient to establish Party B's intent;
2. Integrity: emails preserved intact with full metadata; Party B could not prove alteration;
3. Consistency with other evidence: payment records and site minutes matching the email contents corroborated the email chain;
4. Clear agreement intent: email content showed complete offer–acceptance on work scope and pricing principles, constituting a binding agreement despite no signed appendix.

5. Outcome

The court granted Party A's claims: ordering Party B to pay the email-proven variations plus late-payment interest — nearly VND 12 billion recovered in total.

6. Five project email governance lessons

1. Every variation order needs email confirmation. "Work first, paperwork later" is the fastest road to disputes — at minimum, get it in an email.
2. Use corporate-domain email. Personal emails are hard to tie to representative capacity; corporate domains link directly to the entity.
3. Define speaking authority clearly. State who may confirm quantities and commit payments by email — avoiding "staff promised, company denied".
4. Centralize backups; never delete project emails. When disputes loom, notarize or certified-backup immediately.
5. Confirm quantities periodically by email. Do not wait until final settlement — per-phase email confirmation is both evidence and cash-flow control.

7. Frequently asked questions

Q: Are emails admissible as evidence before the court?

A: Yes. Emails are data messages under the Law on Electronic Transactions 2023 and are recognized as evidence if conditions are met: identifiable sender/recipient, content integrity, and extractability/storage.

Q: What conditions give emails evidentiary value?

A: Three core conditions: (1) authenticated sender (address tied to the entity); (2) intact, unaltered content; (3) extractable, printable and storable for presentation. Work emails on corporate domains are more persuasive than personal ones.

Q: Can a case be won with only emails and no signed contract appendix?

A: Yes, as this illustrative scenario shows. When email chains clearly show the parties' agreement intent (variation orders, quantity confirmation, payment commitments), courts may recognize them as binding agreements.

Q: How should emails be preserved for use as evidence?

A: Never delete work emails; back up regularly; when disputes loom, notarize or certified-backup immediately; keep metadata intact (timestamps, sender/recipient). See T-247 for in-depth electronic evidence.

Q: What if the counterparty denies the emails?

A: Technical forensics can verify (email addresses, servers, integrity), cross-checked with other evidence (meeting minutes, payment records) to corroborate.

Q: How should enterprises govern project emails to prevent disputes?

A: Five principles: use corporate-domain email; confirm every variation order by email; define who may speak for the company; centralize backups; set project email retention periods.

8. When to work with a lawyer

Work with a lawyer as soon as: off-contract variations arise without written confirmation; the counterparty starts delaying payment for "missing paperwork"; electronic evidence needs litigation-standard collection and preservation; or litigation is prepared in EPC/construction disputes. For the in-depth electronic evidence framework, see T-247. FLAT Law Firm represents construction and EPC disputes — contact hotline 0988424851.

References

• Law on Electronic Transactions 20/2023/QH15 (effective 01/7/2024).
• Civil Procedure Code 2015 (92/2015/QH13).
• Content cross-checked at time of writing (28/9/2026).

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