--- title: "Clarence Cheang" url: https://fortitude21.com/clarence-cheang language: en description: "Clarence Cheang, co-founder and COO of Fortitude21, runs operations. His profile lists the knowledge centre guides he signs off, with review dates and topics." --- # Clarence Cheang Co-Founder & COO, Fortitude21 [Clarence@fortitude21.com](mailto:Clarence@fortitude21.com) · [LinkedIn](https://www.linkedin.com/in/clarence-cheang-4ba005311/) Clarence Cheang is Co-Founder and Chief Operating Officer of Fortitude21, the trading name of JCDC Ventures Pte. Ltd. in Singapore. He shares the sign-off on the Fortitude21 knowledge centre guides with his co-founder, David Guru, and approves about half of them. He is the Data Protection Officer for the company under Singapore law. ## Clarence’s role at Fortitude21 Clarence runs operations for Fortitude21 and is its Data Protection Officer under Singapore’s Personal Data Protection Act. Fortitude21 is the trading name of JCDC Ventures Pte. Ltd. (UEN 202119128E), incorporated in Singapore on 1 June 2021, with production in Vietnam and China. ## Guides Clarence signs off 47 guides in our knowledge centre name Clarence as the co-founder who approved their last review. The date beside each guide is the date of that approval, taken from our review log. | Guide | Last reviewed | | --- | --- | | [DGSA explained](https://fortitude21.com/dgsa-dangerous-goods-safety-adviser) | 29 October 2026 | | [DSEAR and ATEX explained](https://fortitude21.com/dsear-atex-fuel-chemical-storage) | 29 October 2026 | | [Food-grade buckets explained](https://fortitude21.com/food-grade-buckets-containers) | 29 October 2026 | | [IATA DGR and IMDG Code basics](https://fortitude21.com/iata-imdg-dangerous-goods-air-sea) | 29 October 2026 | | [Red diesel rules explained](https://fortitude21.com/red-diesel-rules) | 29 October 2026 | | [Storing fuel safely](https://fortitude21.com/storing-fuel-safely) | 29 October 2026 | | [The NATO jerry can pattern](https://fortitude21.com/nato-jerry-can-pattern) | 29 October 2026 | | [UN packaging codes explained](https://fortitude21.com/un-packaging-codes-explained) | 29 October 2026 | | [Chemical compatibility](https://fortitude21.com/chemical-compatibility-guide) | 28 October 2026 | | [Choosing a jerry can](https://fortitude21.com/how-to-choose-a-jerry-can) | 28 October 2026 | | [EU packaging rules and EPR](https://fortitude21.com/eu-packaging-rules-ppwr-epr) | 28 October 2026 | | [Jerry can sizes](https://fortitude21.com/jerry-can-sizes) | 28 October 2026 | | [Packaging regulations by country](https://fortitude21.com/packaging-regulations-by-country) | 28 October 2026 | | [UN specification packaging](https://fortitude21.com/un-specification-packaging) | 28 October 2026 | | [Chemical storage best practices](https://fortitude21.com/chemical-storage-best-practices) | 26 October 2026 | | [Commodity codes and origin](https://fortitude21.com/tariff-classification-and-origin) | 26 October 2026 | | [Defence and government procurement](https://fortitude21.com/defence-government-procurement) | 26 October 2026 | | [Drum pumps and drum handling](https://fortitude21.com/drum-pumps-and-drum-handling) | 26 October 2026 | | [Emergency water for organisations](https://fortitude21.com/emergency-water-care-homes-schools-businesses) | 26 October 2026 | | [Emergency water storage](https://fortitude21.com/emergency-water-storage) | 26 October 2026 | | [EU/UK drinking water contact](https://fortitude21.com/eu-drinking-water-contact-approval) | 26 October 2026 | | [Fuel cans by job](https://fortitude21.com/fuel-cans-by-job) | 26 October 2026 | | [Gas can safety and US rules](https://fortitude21.com/gas-can-safety-rules-us) | 26 October 2026 | | [Generator fuel storage](https://fortitude21.com/generator-fuel-storage) | 26 October 2026 | | [HDPE grades and fluorination](https://fortitude21.com/hdpe-grades-and-fluorination) | 26 October 2026 | | [How to use a jerry can](https://fortitude21.com/how-to-use-a-jerry-can) | 26 October 2026 | | [Jerry can, drum or IBC](https://fortitude21.com/jerry-can-drum-or-ibc) | 26 October 2026 | | [Marine and dockside containers](https://fortitude21.com/marine-fuel-water-containers) | 26 October 2026 | | [Overland and expedition](https://fortitude21.com/overland-expedition-storage) | 26 October 2026 | | [Pails and tins: UN and food contact](https://fortitude21.com/food-contact-and-un-approval-pails-tins) | 26 October 2026 | | [Private-label and OEM](https://fortitude21.com/private-label-oem-manufacturing) | 26 October 2026 | | [Spill containment](https://fortitude21.com/spill-containment-fuel-chemicals) | 26 October 2026 | | [Stainless vs plastic water containers](https://fortitude21.com/stainless-steel-vs-plastic-water-containers) | 26 October 2026 | | [Steel vs HDPE fuel cans](https://fortitude21.com/steel-vs-hdpe-fuel-cans) | 26 October 2026 | | [UK packaging EPR explained](https://fortitude21.com/uk-packaging-epr) | 26 October 2026 | | [UK petrol container rules](https://fortitude21.com/uk-petrol-container-regulations) | 26 October 2026 | | [Venting and pressure](https://fortitude21.com/fuel-can-venting-and-pressure) | 26 October 2026 | | [Warehouse storage and export packing](https://fortitude21.com/warehouse-storage-export-packing) | 26 October 2026 | | [Agricultural fuel storage](https://fortitude21.com/agricultural-fuel-storage) | 21 October 2026 | | [CBAM and steel containers](https://fortitude21.com/cbam-steel-containers-eu-import) | 21 October 2026 | | [Container loading for liquids](https://fortitude21.com/container-loading-drums-ibcs-jerry-cans) | 21 October 2026 | | [COSHH storage requirements](https://fortitude21.com/coshh-storage-requirements) | 21 October 2026 | | [Drum bungs and fittings](https://fortitude21.com/drum-bungs-and-fittings) | 21 October 2026 | | [Jerry can colours explained](https://fortitude21.com/jerry-can-colours) | 21 October 2026 | | [Spill kits explained](https://fortitude21.com/spill-kits-guide) | 21 October 2026 | | [Spouts, pumps and holders](https://fortitude21.com/jerry-can-spouts-pumps-and-holders) | 21 October 2026 | | [UK oil storage regulations](https://fortitude21.com/oil-storage-regulations-uk) | 21 October 2026 | ## Topics The subjects of the guides Clarence signs off: - CBAM - UN packaging codes - UK oil and fuel storage - EU packaging regulation (PPWR/EPR) - Emergency water storage - Spill containment - COSHH and DSEAR storage - Food-contact containers - Customs classification and origin - Defence procurement - Private label manufacturing - Personal data protection (PDPA) ## How the sign-off works Each review is a row in our review log: the date, the guide, what the review covered and the co-founder who approved it. A guide shows the date of its newest approved row. An edit alone does not move that date. Clarence shares the guides with his co-founder, [David Guru](https://fortitude21.com/david-guru). Our [editorial policy](https://fortitude21.com/editorial-policy) sets out what the guides cite and how to report an error. Page updated 7 November 2026