Theme 2 · The Code Era
Why this theme exists
The Corporate Governance Code is the rulebook for board behaviour. It is jointly maintained by JPX/TSE and the FSA; it operates on a comply‑or‑explain basis; and it has been revised twice (June 2018 and June 2021) since its original 2015 publication. An IR representative who cannot fluently navigate the Code — who cannot name the principle behind a question or read a Corporate Governance Report end‑to‑end — is operating without the field manual.
Theme 2 turns the IR rep into a confident Code reader. By the end you will:
- Know the architecture — 5 General Principles, 31 Principles, 47 Supplementary Principles (in the 2021 version), and how comply‑or‑explain actually works.
- Trace the substance — the 2018 revision's introduction of cost‑of‑capital language at Principle 5‑2, the 2021 revision's Prime‑only obligations.
- Read a Corporate Governance Report in 15 minutes — including the section‑by‑section layout and the markers of weak vs strong comply‑or‑explain narratives.
- Recognise METI's parallel rulebook — CGS, GGS, Fair M&A, Takeover Guidelines — and when each one overrides the Code in market practice.
The arc in one sentence
The 2015 Code set the dialogue framework; the 2018 revision injected capital efficiency; the 2021 revision aligned the Code with the impending Prime Market; and METI's guideline family has done the operational heavy lifting that the Code's principles‑based design intentionally leaves to interpretation.
Posts in this theme
| # | Title | Visual |
|---|---|---|
| 2.1 | The 2015 CG Code: a comply‑or‑explain primer | 5+30+38 principle architecture diagram |
| 2.2 | The 2018 Revision: capital efficiency enters the Code | 2015 vs 2018 diff table |
| 2.3 | The 2021 Revision: Prime, sustainability, diversity | 2018 vs 2021 diff + Prime‑only obligations sidebar |
| 2.4 | How to Read a Japanese CG Report in 15 Minutes | CG Report four‑section walkthrough |
| 2.5 | Code vs Guideline: METI's CGS / GGS / Fair M&A / Takeover | Code‑vs‑Guideline matrix |
Reading order
Linear (2.1 → 2.2 → 2.3 → 2.4 → 2.5) is recommended. Posts 2.1‑2.3 are the historical arc of the Code itself; 2.4 is the practical reading skill; 2.5 zooms out to METI's parallel system that most non‑Japanese investors don't realise exists.
What you carry into Theme 3
- Fluency in CG Code principle numbers (especially 1‑4 cross‑shareholdings, 4‑8 independent directors, 5‑2 cost of capital).
- Familiarity with the Prime‑only obligations, which are about to become the basis for market segmentation.
- Recognition that the Code is one of two governing instruments — the Stewardship Code being the other ("two wheels of a cart").
- An understanding that METI's guidelines, although non‑binding, are the operational standard for special committees, MBOs, and group governance.
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