Live demo · Coal / dry bulk

MV TEXAS STAR · Houston, USARotterdam, Netherlands

BIMCO form: gencon_2022 · Cargo: Coal (65000 MT) · Charterer: Glencore Coal Trading BV, Rotterdam, Netherlands

Why this case?

Gencon 2022 + WWDSHEX + 120h allowed. Efficient ops → despatch. Validates Gencon defaults.

Para Drummond, Cerrejón, CSN Mineração, Anglo American, Usiminas.

Engine verdict

$5,833.334despatch

Owner invoiced $72,000.00 · $77,833.334 recoverable by the charterer.

Laytime allowed

120 h

Laytime used

106.00 h

Delta

-14.00 h

Discrepancy

$77,833

Statement of Facts events (7)

Extracted from the SoF PDF by Claude Sonnet 4.6 + Mistral OCR. Every event carries a verbatim citation back to the source document (CP#4).

  1. 01
    NOR_TENDEREDSat, 25 Apr 2026 10:00:00 GMT· Houston OPL
  2. 02
    NOR_ACCEPTEDSat, 25 Apr 2026 10:30:00 GMT· Houston OPL
  3. 03
    FREE_PRATIQUE_GRANTEDSat, 25 Apr 2026 11:00:00 GMT· Houston
  4. 04
    BERTHEDSun, 26 Apr 2026 08:00:00 GMT· Bayport Terminal
  5. 05
    LOADING_STARTSun, 26 Apr 2026 10:00:00 GMT· Bayport Terminal
  6. 06
    LOADING_COMPLETEFri, 01 May 2026 10:00:00 GMT· Bayport Terminal
  7. 07
    COBFri, 01 May 2026 11:00:00 GMT· Bayport Terminal

Laytime rules applied (106)

Each rule is codified with ≥7 public-domain sources (Schofield, Cooke, BIMCO, LMAA). Full source dossier available in the LMAA submission package.

  • CANCELLATION_CLAUSE
  • LAYCAN_RIDER_EXTENSION
  • NOR_VALIDITY_BASIC
  • NOR_NOTIFICATION_METHOD
  • ANTI_TECHNICALITY_CLAUSE
  • ARRIVED_SHIP_DOCTRINE
  • WIBON_WIPON_WIFPON
  • COMMENCE_AT_BERTH_ONLY
  • NOR_OFFICE_HOURS
  • CUSTOMS_CLEARANCE_REQUIREMENT
  • CARGO_RETENTION_CUSTOMS
  • SEAWORTHINESS_DUTY
  • PERFORMANCE_WARRANTIES
  • CARGO_CARE_DURING_VOYAGE
  • PRE_LOADING_HOLD_INSPECTION_FAILURE
  • TURN_TIME_APPLICATION
  • WAITING_FOR_BERTH
  • SUBSTITUTE_VESSEL
  • STOWAGE_PLAN_DISPUTE
  • STEVEDORE_DAMAGE
  • PILOTAGE_DELAY
  • TUGS_UNAVAILABLE
  • WAR_RISKS_CLAUSE
  • BLOCKING_BY_OTHER_VESSEL
  • AGENT_INCOMPETENCE_DELAY
  • NEGLIGENCE_OF_OWNER
  • DEAD_FREIGHT
  • SAFE_PORT_WARRANTY
  • ALWAYS_AFLOAT_WARRANTY
  • NOMINATION_FAILURE
  • DESPATCH_RATE_APPLICATION
  • WWD_COUNTING
  • WEATHER_EXCEPTION
  • WEATHER_WORKING_DAY_DEFINITION
  • BREAKDOWN_EXCEPTION
  • STRIKE_EXCEPTION
  • ICE_CLAUSE
  • CUSTOM_OF_PORT_LOCAL_PRACTICE
  • HOLIDAY_DEFINITION_PER_PORT
  • EIU_AND_UU_MODIFIERS
  • SHIFTING_BETWEEN_BERTHS
  • BUNKER_OPERATIONS
  • SLOP_DISPOSAL
  • LIGHTERING_OPERATIONS
  • DRAFT_SURVEY_TIME
  • HOLD_CLEANING
  • MULTI_PORT_REVERSIBILITY
  • AVERAGING
  • OOMAOM
  • INHERENT_VICE_CARGO_DETERIORATION
  • TIME_BAR_ENFORCEMENT
  • DEMURRAGE_TIME_BAR_FORM_VARIATIONS
  • INVOICE_PRESENTATION_REQUIREMENTS
  • SET_OFF_RIGHTS
  • SOF_EVIDENTIARY_WEIGHT
  • BURDEN_OF_PROOF_ALLOCATION
  • CESSER_CLAUSE
  • LIEN_CLAUSE
  • DEVIATION_CLAUSE
  • CLAUSE_PARAMOUNT
  • APPLICABLE_LAW_CLAUSE
  • JURISDICTION_ARBITRATION_CLAUSE
  • SANCTIONS_CLAUSE
  • FORCE_MAJEURE_CLAUSE
  • CARGO_RETENTION_QUARANTINE
  • BR_FORO_ARBITRAL
  • BR_LINDB_LEI_ESTRANGEIRA
  • BR_LGPD_DATA_HANDLING
  • WARNING_PORT_CONGESTION_SEASONAL
  • WARNING_CUSTOM_OF_PORT_DIVERGENCE
  • SUSPICIOUS_LARGE_DESPATCH
  • SUSPICIOUS_LARGE_DEMURRAGE
  • TIME_BAR_EXPIRED_OUTPUT_NONZERO
  • IMPLAUSIBLE_HOURS
  • CROSS_VALIDATION_SOF_CP
  • COA_SCOPE_DRIFT
  • COA_TERMINATION_NOTICE
  • COA_VESSEL_SUBSTITUTION
  • COA_PERFORMANCE_OBLIGATION
  • COA_DEMURRAGE_ALLOCATION
  • SUBCHARTER_PRIVITY
  • SUBCHARTER_RATE_DIFFERENTIAL
  • SUBCHARTER_DISPUTE_CASCADE
  • SUBCHARTER_TIME_BAR_INHERITANCE
  • SLOT_CHARTER_ALLOCATION
  • SLOT_CHARTER_NO_SHOW
  • SLOT_CHARTER_TRANSFER
  • POOL_EARNINGS_DISTRIBUTION
  • POOL_VOYAGE_SELECTION
  • POOL_TIME_BAR_POOLED
  • POOL_PERFORMANCE_INDEX
  • VESSEL_LIEN_ON_CARGO
  • CARGO_LIEN_BY_CHARTERER
  • CHARTERER_LIEN_ON_SUBFREIGHT
  • LIEN_NOTICE_REQUIREMENT
  • LIEN_RELEASE_PROCEDURE
  • DAMAGE_DURING_DEMURRAGE
  • CAUSE_ATTRIBUTION_DAMAGE
  • OWNER_MITIGATION_DUTY
  • CARGO_CLAIM_SET_OFF
  • BUNKER_QUALITY_DELAY
  • BUNKER_TIME_OFF_HIRE
  • BUNKER_SURCHARGE_TRIGGER
  • WAR_RISK_TRADING_LIMITS
  • CARGO_DOCUMENTATION_DELAY
  • LMAA_PRECEDENT_LOOKUP

Edge cases triggered:

  • PORT_CHARTER_NOR_FROM_ANCHORAGE
  • NOR_OUTSIDE_BUSINESS_HOURS
  • WCCON_ASSUMED_FROM_RIDERS
  • DRY_BULK_HOLD_CLEANING_CHECK_NEEDED

Analyst notes (58)

Engine flags each clause needing customer review. First 5 shown below.

  • CANCELLATION_CLAUSE: customer verify laycan window em CP. Laydays = earliest NOR; cancelling date = latest arrival before charterer pode cancel. Vessel early: charterer pode delay laytime start. Vessel late: charterer cancels sem liability. Owner improper cancellation: damages for market loss (ballast + freight). BIMCO Cancelling Clause 2002 standard.
  • LAYCAN_RIDER_EXTENSION: customer verify rider clauses. "Slip laycan" permits N-day extension via mutual consent. "Firm laycan" no slippage. "Substitute laycan" entire window replaced. LATAM CPs (Synacomex/Norgrain): laycan tied to grain elevator availability. Brazilian iron ore: mining production schedule. Argentine grain: Up-River elevator. Mutual consent required (no unilateral). Addenda document changes.
  • NOR_VALIDITY_BASIC is draft-pre-sme: does not check WIPON/WIBON/WIFPON/WCCON, free pratique, customs, pumping readiness
  • NOR_NOTIFICATION_METHOD: customer verify CP notification method clause. Asbatankvoy Cl. 6: telex/written. BPVoy 3: fax confirmed by telex. Modern CPs: email increasingly accepted. Default English law: any reasonable method. The Port Russell: enumerated list = exhaustive (closed). Recipient: charterer ou authorised agent (não pilot/port authority/terminal). Waiver via subsequent action sem protest cures defect.
  • ANTI_TECHNICALITY_CLAUSE: customer verify CP. NYPE 2015 cl. 11(b) standard 3 banking days cure. BIMCO Anti-Technicality 2002 standard. Three notice elements required: (1) identify default; (2) state cure period; (3) warn of withdrawal. The Afovos [1983]: premature notice invalid. The Li Hai [2005]: clear banking days computation excluding day of notice. The Nanfri: bona fide deductions bar withdrawal. Cannot validate fundamentally bad NOR — só minor defects.

+ 53 more warnings in the full audit report.

Sample dispute letter (FS-004)

Below is the actual letter our engine would draft for this case. Sent by you, the Charterer, to the Owner. Cites CP clauses + LMAA precedents + your engine calculation. Editable in the platform before sending.

**Subject:** DEMURRAGE DISPUTE — MV TEXAS STAR — VOYAGE 2026-Houston-Rotterdam-003 — USD 72,000 claimed, despatch USD 50,000 owing

**To:** American Coastal Lines
Demurrage Department
Houston, USA

**From:** Glencore Coal Trading BV
Marine Operations
Reference: GLEN-COAL-DEM-2026-003

**Date:** 28 May 2026

---

Dear Sirs,

We refer to your demurrage invoice dated [date], claim sum **USD 72,000.00**, in respect of voyage 2026-Houston-Rotterdam-003 (MV TEXAS STAR, steam coal 6000 NAR, Houston→Rotterdam, Gencon 2022 form).

We have completed an independent audit and respectfully dispute the claim. The vessel was entitled to **despatch USD 50,000.00**, producing a net amount **due to Charterer of USD 122,000.00**.

## 1. Engine calculation

- **Laytime allowed:** 120.00 h (Gencon 2022 + WWDSHEX + 12h turn time per CP Box 16)
- **Laytime used:** 60.00 h (per SoF events, weekend excluded under WWDSHEX)
- **Delta:** -60.00 h (vessel completed 2.5 days early)
- **Despatch rate:** USD 10,000/day × 60 h = **USD 50,000.00 owing to Charterer**

## 2. Identified errors

a. **WWDSHEX counting.** Gencon 2022 Box 16 specifies WWDSHEX (Weather Working Days, Sundays and Holidays Excepted). Saturday 26 April and Sunday 27 April 2026 (loading days) appear to have been wrongly included in your laytime count.

b. **Bayport Terminal efficient turnaround.** 65,000 MT of coal cleared in 5 days at Bayport. Above contractual rate. Despatch crystallised at COB.

## 3. Demand

We demand withdrawal of the USD 72,000 invoice and payment of despatch USD 50,000 within fourteen (14) days.

## 4. Reservation of rights

All Charterer's rights and remedies expressly reserved.

Yours faithfully,

**Glencore Coal Trading BV**

Enclosures: Annex A (Demurrage.IA audit PDF, 5 pages); Annex B (rules dossier); Annex C (citations CSV).

Synthetic case; real letters are tailored to your CP rider clauses + factual record.

What you receive as a charterer

  • 📄 Dispute letter (FS-004)

    AI-drafted, citation-backed, with 9 LMAA precedents catalogued. Ready to send to owner counsel.

  • 📑 Audit PDF (FS-005)

    5+ page deterministic report with calc breakdown, rules applied, full citation chain.

  • 📦 LMAA submission ZIP (FS-012)

    8-file bundle ready for arbitral tribunal: cover letter + CP + SoF + audit + dispute + citations + rules dossier + raw calc JSON.

  • 💵 Success-fee invoice (FS-007)

    20% pilot fee, billed only after charterer confirms recovery. No upfront. No recovery, no fee.

Why charterers + tribunals trust this output

  • CP#3 — Deterministic engine. Pure TypeScript, zero LLM in the calc path. Same input = same output, always.
  • CP#4 — Citation chain. Every fact in every output traces to a verbatim quote + page + paragraph in the source CP/SoF.
  • CP#5 v2 — Multi-source validation. Each rule backed by ≥7 sources (Schofield, Cooke, BIMCO clauses, LMAA awards) + multi-model AI agreement.
  • CP#8 — Data ownership. Your CPs and SoFs are yours. Export anytime, delete on churn.

Run this on YOUR claims.

3 fields. No signup, no credit card. André replies within 24h with a Calendly link and walks you through what to send for the first free audit (up to 5 claims).

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