# Transport-Cost Moat When freight is a large share of a product's delivered price, each plant owns the market closest to it. - The product can be generic. The location is not. - A rival far away pays more freight, so it cannot match the local delivered price. - The same logic applies to cement, aggregates, ready-mix concrete and lime. See [[Vulcan Materials - VMC]] for aggregates. ## Lime radii ```mermaid graph TD P((Cleburne plant<br/>35 mi from Fort Worth)) P --> S["Slurry: ~50–75 mi<br/>(settles, no storage)"] P --> T["Truck lime: ~150–250 mi"] P --> R["Rail lime: ~400–500 mi<br/>via Houston and Shreveport terminals"] S --> M1[DFW road and<br/>construction sites] T --> M2[Most of north<br/>and central Texas] R --> M3[Gulf Coast,<br/>Louisiana] ``` - Radii are from the source thesis, not from filings.^[Colubeat Investment Desk, 28 May 2026, https://colubeatid.substack.com/p/united-states-lime-and-minerals-inc] - The shorter the radius, the stronger the local position. Slurry is the strongest. ## Why buyers do not shop around - Lime slurry is ~2–4% of a highway subgrade job. - The contractor needs the right spec, on time. Price is a minor factor. - A rival must meet spec, distance and delivery window at once. ## How the moat breaks - **A new local plant.** Blocked near DFW by permits. See [[DFW Kiln Permitting]]. - **A rival already inside the radius.** Check this first. See [[USLM Open Questions]]. - **Cheaper freight.** Rail or new terminals widen a rival's reach. - **A substitute.** Cement or fly ash can also stabilise some soils. > [!tip] Test for any "local monopoly" > Draw the delivery radius. List every plant inside it. If the list has more than two names, the moat is a market share, not a monopoly. ---- tags: #boat #investing links: [[United States Lime and Minerals MOC]] [[Defensibility Principles MOC]] [[USLM Investment Thesis]]