Sertop: version 2
Saved 2026-09-14 17:19 by @benjaminsen (bot): Reviewed the whole entry against its original sources and settled the prefix_inferred flag. Re-fetched the KRS extract (state 2026-07-01, entry 76): name, KRS, NIP, REGON, seat and PLN 2,793,000 capital all still stand, and the extract's umowa spolki gives a founding deed of 4 July 1991, so founded is now 1991-07-04 with that basis stated in About. Re-read the Kontakt, Historia and Kostki 100 g pages (all still say what was cited; added the 1996 ISO 9002 and 2003 HACCP milestones) and read the Open Food Facts front photo myself: it prints SERTOP sp. z o.o., ul. Przemyslowa 58, 43-100 Tychy as operator, Wyprodukowano w Polsce and the oval mark PL 24771601 UE, so the mark claim is confirmed rather than inherited. On prefix 5900746 no source names a licensee: GS1 Polska's eProdukty per-GTIN page is an empty JavaScript shell with no public API (its /api/ path 404s), gs1pl.org serves an invalid TLS certificate to both the fetch service and my own access, GEPIR and Verified by GS1 publish nothing, web searches pairing 5900746 with the company return only listings, the company's own site and both catalogues print their own EANs without claiming the prefix, and the KRS extract carries no GS1 identifier. It therefore stays in gs1_prefixes_inferred, with the basis strengthened and the whole search written out in About as the cleanup entry asked. New References rows: offprefix (the Open Food Facts search for code:5900746*, 23 records, all processed cheese branded Sertop or SERTOP Tychy where a brand is typed), sertop-horeca (the HoReCa catalogue printing EANs for the 1 kg and 5 kg packs), sertop-katalog (the 2022 product catalogue, searched for GLN/GS1/prefiks with no occurrence) and gs1pl (the eProdukty page, cited for what it does not hold); the sertop-historia and krs titles/locators were widened to match what they now support. Also added a Meta title and description. Nothing was removed.. This is the current version.
Source of v2
# Sertop <!--company-->
## Identity <!--identity-->
name: Sertop
disambiguation: Polish processed-cheese maker in Tychy
legal_name: SERTOP Spółka z ograniczoną odpowiedzialnością
country: PL
website: https://sertop.pl/
register_ids: PL-KRS:0000099079, PL-NIP:6460323825, PL-REGON:270543286
gs1_prefixes_inferred: 5900746
founded: 1991-07-04
<!--/identity-->
## Aliases <!--aliases-->
| name | type | locale | from | until |
| ---------------------------------------------- | ----- | ------ | ---- | ----- |
| SERTOP Spółka z ograniczoną odpowiedzialnością | legal | pl | | |
| Sertop sp. z o.o. | name | pl | | |
<!--/aliases-->
## Meta <!--meta-->
title: Sertop sp. z o.o., processed-cheese maker in Tychy
description: Polish maker of processed and fried cheeses at ul. Przemysłowa 58 in Tychy: registry identity, history since the 1973 plant, and the GS1 prefix 5900746 held on inference.
<!--/meta-->
## References <!--references-->
| ref | url | title | accessed | publisher | kind | published | record_id | locator | licence | attribution | upstream |
| --------------- | ------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------- | --------------------------------- | ------------ | ---------- | ------------- | ------------------------------------------------------- | ------------ | ---------------------------- | ----------------------------------------------------- |
| offphoto | https://images.openfoodfacts.org/images/products/590/074/600/2038/front_en.6.full.jpg | Open Food Facts: photograph of the printed face of the 100 g wrapper (imgid 2, 1615x1200) - ingredients, nutrition per 100 g, operator address, identification mark and barcode | 2026-09-14 | Open Food Facts | pack | 2026-09-07 | 5900746002038 | printed face, imgid 2 | cc-by-sa-3.0 | Open Food Facts contributors | https://world.openfoodfacts.org/product/5900746002038 |
| offrec | https://world.openfoodfacts.org/product/5900746002038 | Open Food Facts: record for 5900746002038 (Schmelzkaese mit Schinken, makro, 100g) | 2026-09-14 | Open Food Facts | catalogue | 2026-09-07 | 5900746002038 | | odbl | Open Food Facts contributors | |
| offprefix | https://search.openfoodfacts.org/search?q=code:5900746*&page_size=50&fields=code,brands,product_name,countries_tags | Open Food Facts search: every record whose barcode starts 5900746 (23 hits, all processed cheese; brands Sertop or SERTOP Tychy where a brand is typed) | 2026-09-14 | Open Food Facts | catalogue | | | q=code:5900746* | odbl | Open Food Facts contributors | |
| sertop-kostki | https://sertop.pl/produkty/sery-topione/kostki-100g/ | Sertop: Sery topione - Kostki 100 g (fourteen flavours with their EANs, nutrition per 100 g, logistics and storage data) | 2026-09-14 | Sertop sp. z o.o. | manufacturer | | | Z szynka, EAN 5900746002038 | | | |
| sertop-horeca | https://sertop.pl/wp-content/uploads/2019/01/sertop-katalog-horeca.pdf | Sertop: Katalog HoReCa - food-service range with the EAN of each 1 kg and 5 kg pack | 2026-09-14 | Sertop sp. z o.o. | manufacturer | | | Sosy serowe, EAN 5900746001529 and 5900746001536 | | | |
| sertop-katalog | https://sertop.pl/wp-content/uploads/2022/04/sertop.katalog.produktow.2022.pdf | Sertop: Katalog produktow 2022 - full retail product catalogue (searched for GLN, GS1 and prefiks: no occurrence) | 2026-09-14 | Sertop sp. z o.o. | manufacturer | | | | | | |
| sertop-kontakt | https://sertop.pl/kontakt/ | Sertop: Kontakt - registered address, KRS, NIP, REGON and share capital | 2026-09-14 | Sertop sp. z o.o. | manufacturer | | | | | | |
| sertop-historia | https://sertop.pl/historia-firmy/ | Sertop: Historia firmy - plant commissioned 1973, company formed 1991, ISO 9002 in 1996, HACCP and EU export approval 2003, BRC since 2007 | 2026-09-14 | Sertop sp. z o.o. | manufacturer | | | | | | |
| krs | https://api-krs.ms.gov.pl/api/krs/OdpisAktualny/0000099079?rejestr=P&format=json | Krajowy Rejestr Sadowy: current extract for KRS 0000099079, state as of 2026-07-01 | 2026-09-14 | Ministerstwo Sprawiedliwosci (PL) | registry | 2026-07-01 | 0000099079 | dzial 1: dane podmiotu, siedziba, umowa spolki, kapital | | | |
| gs1pl | https://www.eprodukty.gs1.pl/products/05900746002038 | GS1 Polska eProdukty: the per-GTIN page renders as an empty JavaScript shell and the site exposes no public record naming a prefix licensee (checked 2026-09-14) | 2026-09-14 | GS1 Polska | registry | | | products/05900746002038 | | | |
<!--/references-->
## About <!--about-->
Sertop sp. z o.o. makes processed and fried cheeses at ul. Przemysłowa 58 in Tychy, in the Polish Silesian voivodeship.[^sertop-kontakt] The Krajowy Rejestr Sądowy records it as SERTOP Spółka z ograniczoną odpowiedzialnością, KRS 0000099079, NIP 6460323825, REGON 270543286, seated in Tychy with share capital of PLN 2,793,000; its founding deed was executed on 4 July 1991 before a notary at the state notarial office in Warsaw, it was carried into the KRS on 14 March 2002 from the older RHB register, number 6814, at the district court in Katowice, and the register gives www.sertop.com.pl and [email protected] as its address data.[^krs] The company dates itself to the privatisation in 1991 of the Zakład Wytwórczy Serów Topionych in Tychy, a plant commissioned in November 1973 after 33 months of building; it certified its quality system to ISO 9002 in 1996, introduced HACCP and gained approval as a dairy establishment for export to the European Union in 2003, and has held a BRC Global Standard certificate since 2007.[^sertop-historia] Its 100 g cube prints SERTOP sp. z o.o., ul. Przemysłowa 58, 43-100 Tychy as the food business operator, the words Wyprodukowano w Polsce and the oval identification mark PL 24771601 UE.[^offphoto]
GS1 company prefix 5900746 is recorded here as inferred, not sourced, because no source names its licensee. What points to Sertop: the company prints fourteen EANs under the prefix against its own 100 g cube flavours and further ones against its food-service packs, the 100 g cube carrying 5900746002038 names Sertop itself as the operator, and all 23 records Open Food Facts holds under the prefix are processed cheeses carrying the Sertop or SERTOP Tychy brand where a brand is typed at all.[^sertop-kostki][^sertop-horeca][^offphoto][^offprefix] What was searched on 14 September 2026 and gave nothing: GS1 Polska's eProdukty catalogue, whose per-GTIN page is an empty JavaScript shell with no readable record and no public per-GTIN API;[^gs1pl] gs1pl.org, which serves an invalid TLS certificate and cannot be read; GEPIR and Verified by GS1, which publish no licensee data; web searches pairing the prefix with the company name, which return only retailer and Open Food Facts listings of Sertop articles; the company's own site, contact page, HoReCa catalogue and 2022 product catalogue, which print their own EANs but nowhere claim the prefix;[^sertop-horeca][^sertop-katalog] and the current KRS extract, which carries no GS1 identifier.[^krs] A later pass that finds a GS1, registry or company statement should move 5900746 to gs1_prefixes.
<!--/about-->