Shareholding: main investor holds at least 60 %, 40 % for sale

User, 20 Oct 2026: the main investor W wants to hold at least 60 % of
the company (the BOI-promoted company), so only 40 % is for sale.

- total-investment.md "Two plans": the 60/40 rule; Ploy Printing's
  stake, founders' shares and any further co-investor come out of the
  40 %; at Plan B's ~54M THB equity floor (3:1) and one share price
  that is at least ~32M / at most ~22M THB (arithmetic only; share
  price, valuation and in-kind shares not agreed).
- README Project Status and boi.md (foreign-ownership privilege) point
  to it.
- Business plan: section 12.2 states the split (A: ~28M / ~18M, B:
  ~32M / ~22M at the equity floor, arithmetic), the co-investment bullet
  and the decisions list name the 40 %; A and B rebuilt (63 pages each,
  TOC and em-dash check clean).

docs/business-plan/build/content_a.py

@@ -373,7 +373,9 @@ def blocks():
             "no longer open: both versions run on biomass steam from launch.",
             "**Co-investment:** Ploy Printing, the Chiang Mai print and packaging house that will produce "
             "the plant's jackets and sleeves, has expressed the intention to invest alongside the lead "
-            "investor. Terms are not yet discussed; the intended structure is described in section 12.",
+            "investor. The lead investor holds at least 60 % of the company, so at most 40 % is open to "
+            "Ploy Printing, the founders and any further co-investor. Terms are not yet discussed; the "
+            "intended structure is described in section 12.2.",
         ]),
 
         # ----------------------------------------------- 2 reading guide