AI Hallucination Research › Audiences › Practitioners › Singapore › Lawyers › Detail › Finding
Practitioners — Lawyers · published 2026-05-28 · methodology v2.1

Subject matter of Annex 6C in consolidated MAS Notice 637

What the RLB Specialist Panel found

4. Subject matter of Annex 6C in consolidated MAS Notice 637

  • Question (paraphrased to protect IP): What does Annex 6C of the consolidated MAS Notice 637 address?
  • Source regulation: MAS Notice 637 — Risk Based Capital Adequacy Requirements for Banks Incorporated in Singapore (Regulator portal: https://www.mas.gov.sg)
  • What AI assistants typically say: AI tools describe Annex 6C as addressing a prudent valuation framework — setting out the methodology and criteria a reporting bank must apply when prudently valuing fair-valued financial instruments, with reference to additional valuation adjustments.
  • What the regulator actually says: No regulator excerpt was available for this finding. Practitioners should consult the consolidated MAS Notice 637 directly to confirm the content of Annex 6C.
  • Why the AI went wrong: The response appears to be reasoned from the general Basel III framework structure — where prudent valuation and additional valuation adjustments are a known topic area — rather than retrieved from the actual MAS Notice 637 document. The AI provided no document passage, section heading, or other textual basis for its characterisation, meaning the answer is an inference that may not reflect what Annex 6C actually contains.
  • Cited source(s):
Impact for this audience

A Lawyer advising a client on the valuation requirements under MAS Notice 637 who relies on the AI's description of Annex 6C as covering prudent valuation methodology will be working from an unverified inference. If the annex covers different subject matter, the Lawyer's advice on the scope and methodology of the client's valuation obligations will be incorrect. In the context of MAS prudential supervision, where capital adequacy calculations depend on the correct valuation of fair-valued instruments, the financial and regulatory consequences for the client can be significant — and the Lawyer's exposure arises from having relied on an AI answer that lacked any documentary basis.

References — raw findings (per AI model)
This finding also affects
← Previous finding Finding 3. Scope and exclusions of Annex 4D in consolidated MAS Notice 637 Next finding → Finding 5. Content of Division 4 of Part VI of MAS Notice 637
Cite this finding

Each finding has a stable Citation ID (RLB-F-… for aggregated case-study findings, RLB-H-… for raw per-model hallucinations) — like a DOI, the ID always resolves to the canonical finding even if URLs change.

Plain text 
RegLeg Specialist Panel (2026). "Subject matter of Annex 6C in consolidated MAS Notice 637 — Practitioners — Lawyers." Citation ID: . RegLegBrief AI Hallucination Research, published 2026-05-28. https://reglegbrief.com/audiences/practitioners/sg/lawyers/finding/q-NOTICE-637-CAPITAL-ADEQUACY-BANKS-2025-v1-019/
APA 7th edition 
RegLeg Specialist Panel. (2026). Subject matter of Annex 6C in consolidated MAS Notice 637 [Hallucination finding ]. RegLegBrief AI Hallucination Research. https://reglegbrief.com/audiences/practitioners/sg/lawyers/finding/q-NOTICE-637-CAPITAL-ADEQUACY-BANKS-2025-v1-019/
Bluebook / OSCOLA (US + UK legal) 
RegLeg Specialist Panel, Subject matter of Annex 6C in consolidated MAS Notice 637 [], RegLegBrief AI Hallucination Research (May 28, 2026), https://reglegbrief.com/audiences/practitioners/sg/lawyers/finding/q-NOTICE-637-CAPITAL-ADEQUACY-BANKS-2025-v1-019/.
BibTeX 
@misc{reglegbrief_,
  author    = {RegLeg Specialist Panel},
  title     = {Subject matter of Annex 6C in consolidated MAS Notice 637},
  year      = {2026},
  publisher = {RegLegBrief AI Hallucination Research},
  note      = {Hallucination finding Citation ID: },
  url       = {https://reglegbrief.com/audiences/practitioners/sg/lawyers/finding/q-NOTICE-637-CAPITAL-ADEQUACY-BANKS-2025-v1-019/}
}
← Back to case study summary Case study detail →
About Citation IDs →