Companies simultaneously listed on the ASX and TSX face a reporting environment that is superficially similar but materially divergent. Both codes use the CRIRSCO framework and the same Measured/Indicated/Inferred classification hierarchy — but the disclosure mechanics, professional liability structures and specific content requirements differ in ways that routinely catch cross-listed companies off guard.
This post focuses on the divergences that matter most in practice: the person responsible for the estimate, the modifying-factor disclosure obligation, and the supplementary disclosure tables. I am not addressing the full text of either code — both run to hundreds of pages — but the specific points where a report compliant with one regime will be deficient under the other.
Framework Philosophy: Principles vs. Prescriptions
JORC 2012 is a principles-based code. Table 1 lists criteria that the Competent Person must consider and report on, but the depth of disclosure is left to professional judgement: the CP must report "all information that is material" under each criterion, which the ASX Listing Rules amplify but do not itemise exhaustively.
NI 43-101 Form 43-101F1 is more prescriptive. Its 23 items specify precisely what must be disclosed, including requirements that have no direct JORC equivalent — most notably the requirement to name the QP for each section of the report and the prohibition on the issuer directing or controlling the QP's technical conclusions.
In practice, a NI 43-101 report will usually satisfy JORC Table 1 requirements because it is more detailed. The reverse is not reliably true: a JORC-compliant ASX announcement may be materially incomplete for NI 43-101 purposes, particularly on QP identity disclosure and exploration information.
Key Divergences at a Glance
| Topic | JORC 2012 (ASX) | NI 43-101 (TSX/TSXV) |
|---|---|---|
| Responsible person title | Competent Person (CP) | Qualified Person (QP) |
| Minimum experience requirement | 5 years relevant experience + JORC-recognised professional membership | 5 years relevant experience + professional designation recognised by a self-regulating organisation |
| Named in public disclosure? | Yes — ASX requires CP name and membership in all resource/reserve announcements | Yes — QP must be named in the technical report and may be named in press releases |
| Independence requirement | No blanket independence requirement; materiality-based conflicts must be disclosed | No blanket independence requirement; QP must disclose any material relationship with the issuer |
| Supplementary disclosure table | Table 1 — must accompany all initial public resource/reserve reports | Item 14 of Form 43-101F1 — full technical report required within 45 days of trigger event |
| Modifying factors | Must consider all Table 1 modifying factor criteria; materiality determines depth of disclosure | Item 14.4 requires explicit statement of which modifying factors were and were not considered |
| Historical estimates | No equivalent provision; historical estimates not recognised under JORC without CP verification | Specific disclosure regime for historical estimates under NI 43-101 Section 2.4 |
Competent Person vs. Qualified Person: Liability Differences
Both codes place personal professional liability on the individual signing off the estimate, but the enforcement mechanisms differ. Under JORC/ASX, the CP's liability flows primarily through their professional body (AIG, AusIMM) and ASX Listing Rule 5.8, which requires the CP to consent to being named. Withdrawing consent is a formal act that triggers a market disclosure obligation for the issuer.
Under NI 43-101, the QP's liability flows through both their professional body and Canadian securities law. The QP must provide a signed certificate and consent as exhibits to the technical report, and they can be named as a respondent in OSC or CSA enforcement proceedings. This creates a higher formal legal exposure than the JORC regime, which partly explains why independent QP fees in Canada are typically higher than CP fees in Australia for equivalent scope engagements.
"Both the CP and QP are signing their professional reputation to the estimate. The difference is that under NI 43-101, they may also be signing their way into a securities enforcement proceeding."
Table 1 vs. Item 14: The Disclosure Mechanics
JORC Table 1 is a structured checklist of criteria, organised into four sections: Sampling Techniques and Data, Reporting of Exploration Results, Estimation and Reporting of Mineral Resources, and Estimation and Reporting of Ore Reserves. For each criterion the CP must either provide the required information or explain why it is not material. Table 1 accompanies the ASX announcement — it is appended to the press release itself, not filed as a separate document days later.
NI 43-101 Form 43-101F1 Item 14 is a narrative section within a full technical report that must be filed within 45 days of the trigger event (typically a resource estimate disclosure). The report can run to hundreds of pages and must be filed on SEDAR+. The 45-day gap between announcement and report filing is a window of regulatory exposure for cross-listed companies: the ASX announcement may be published with Table 1 while the NI 43-101 report is still being drafted.
For a simultaneous ASX/TSX disclosure, the most efficient approach is to draft the NI 43-101 technical report first (as it is more prescriptive), then extract Table 1 content from the report. Drafting in the reverse order frequently produces NI 43-101 gaps that require material rework.
Practical Recommendations
- Engage a practitioner credentialled under both regimes (or two practitioners who co-sign). A CP who is not also a QP, or vice versa, creates a handover risk at the point of disclosure.
- Build NI 43-101 Item 14 requirements into the report from the outset. Retrofitting NI 43-101 disclosures onto a JORC-structured document is consistently more expensive than drafting to the higher standard initially.
- Plan for the 45-day SEDAR+ filing deadline. The NI 43-101 technical report should be in advanced draft before any TSX-triggering disclosure is made. Being caught without a near-complete report at the time of announcement is a manageable risk on the ASX side but a compliance risk on the TSX side.
- Confirm modifying-factor treatment in advance. NI 43-101 Item 14.4 requires an explicit statement of which modifying factors were considered and which were not. For early-stage resource estimates where many modifying factors are not yet assessed, this statement must be affirmative ("the following factors were not considered because…"), not simply absent.
JNA Resource Advisory is qualified to author and co-sign technical reports under both NI 43-101 and JORC 2012. Contact us to discuss your dual-jurisdiction reporting needs.