A terracotta panel market ranking can be useful historical context, but it is not a product test, factory audit or current supplier qualification. Before repeating “No. 1,” a reader needs the period, geography, product definition, sales measure, market denominator, participating companies and independent source. Without those elements, the statement remains a dated company claim.
Preserve the 2013 claim without updating it
The page published in April 2014 says LOPO sold 250,000 square metres of terracotta panel and 150,000 square metres of terracotta louver in China during 2013. It gives 1,200,000 square metres as the annual Chinese terracotta-panel market, states a 20% share and ranks LOPO first by sales volume. The page does not name the market-data provider, survey, respondent list, methodology or source document.
Define the market before calculating share
“Chinese terracotta panel market” could mean domestic shipments by Chinese plants, sales into China from all origins, completed facade area, ordered area, invoiced area or production. It might include or exclude louvers, tiles, brick slips, exports, cancellations and inventory. Geography may follow factory location, customer location or project location. A ranking is not reproducible until these choices are written down.
Set a calendar or fiscal period and one unit. Explain how returns, replacements, intercompany transfers and multi-year projects are handled. If panel and louver figures are combined, the denominator must include the same product families. If they remain separate, publish separate shares. Do not compare one supplier’s production capacity with another supplier’s invoiced sales.
Audit the numerator and denominator independently
Supplier numerator
Reconcile invoices, shipment records, credit notes, customer locations and product codes to an agreed measure and period.
Market denominator
Document the research universe, participating firms, estimates for non-participants, imports, exports and data gaps.
Comparison set
Confirm that every competitor is measured on the same geography, products, timing, transaction basis and units.
Ranking rule
State whether the ranking uses area, revenue, volume, projects, installed work or another metric, including ties and uncertainty.
The archived arithmetic also deserves clarification. Dividing the stated 250,000 square metres of panel by a 1,200,000-square-metre panel market gives about 20.8%, which may explain the rounded 20%. The separate 150,000-square-metre louver figure does not fit that denominator unless the market definition includes louvers. This does not prove an error; it shows why scope and source data matter.
Evaluate source quality and conflicts
Prefer a documented third-party study over a supplier press release, but independence alone is insufficient. Review who commissioned and paid for the research, who supplied data, how confidentiality was managed, the response rate, estimation method, quality checks, revision policy and publication date. Ask whether the researcher will disclose enough method for a buyer to judge comparability without exposing confidential company data.
ISO 20252:2019 establishes vocabulary and service requirements for market, opinion and social research, including insights and data analytics. ISO also shows a later edition under development, so users should check status when commissioning new work. The standard can guide research process; citing it does not validate the archived LOPO numbers or establish a ranking.
Separate popularity from project suitability
Market share can indicate past commercial reach, but it does not show that a current terracotta profile suits a building. Project teams still need product drawings, finish samples, test evidence, facade engineering, quality controls, production planning, logistics, installation method, warranty and replacement support. A smaller supplier may offer a better-matched system; a former market leader may not retain the same capacity or product range.
Do not treat named developer relationships or export destinations in the archive as current endorsements. Verify any reference with project name, location, completion period, supplied scope, quantity and contact permitted to confirm performance. Distinguish a quotation, purchase order, shipment and installed facade. Each supports a different statement.
Replace superlatives with current capability evidence
| Question | Current evidence to request |
|---|---|
| Can the factory make the proposed profile? | Recent production examples, drawings, tooling plan, sample trial and accepted tolerance |
| Can it meet the programme? | Current line allocation, demonstrated output for comparable units, bottlenecks and contingency |
| Is quality repeatable? | Control plan, calibrated inspections, batch records, nonconformity process and first-production review |
| Is the system technically suitable? | Matched reports, calculations, interfaces, mock-up and project-professional acceptance |
| Can delivery be supported? | Entity, contract scope, packaging, logistics, installation support, spares and warranty route |
Time-stamp every document and identify which legal entity and plant it describes. Avoid replacing an old market ranking with a new unverified “leading” claim. Current capability is strongest when several evidence types agree.
Publish a defensible conclusion
A careful conclusion might read: “LOPO’s 2014 article reported that it ranked first in China by 2013 terracotta-panel sales, using company-stated volume and market figures; this review did not locate the underlying independent dataset and does not treat the claim as current.” That wording preserves history without misleading a procurement team.
Explore current terracotta product families and built references in the project gallery, then evaluate each offer with a consistent evidence schedule.