strata derivation over UN Comtrade + CAICT + MIIT + ICEA/IBEF
World annual device-unit flows, 2024: smartphones (HS 851713) 1.125B units and portable computers incl. tablets (HS 847130) 342.0M units - both documented floors
Source
Feed (what to expect)
Curated derivation CSV re-built per vintage from four free sources: UN Comtrade public preview API (importer-reported world imports + HK/SG hub exports + China exports), CAICT domestic-market report (https://gma.caict.ac.cn/plat/news/caict-release-china-mobile-phone-market-analysis-report-december-2024), MIIT electronics-industry statistics (https://wap.miit.gov.cn/gxsj/tjfx/dzxx/art/2025/art_1700821f77774a368eaa88e6c9fb3807.html), ICEA estimates via IBEF (https://www.ibef.org/news/value-of-mobile-device-production-in-india-for-domestic-sales-and-exports-surges-to-us-49-16-billion-rs-4-1-lakh-crore-in-fy24). Coefficient studies carded separately: eu_ecodesign_task4_2021 (https://ekosuunnittelu.info/wp-content/uploads/2018/08/Task_4_ErP_study-final.pdf) and oeko_2012_ewaste_criticals (https://www.oeko.de/oekodoc/1375/2012-010-en.pdf).
Quirks
Reconciliation
Schema
Feeds (axes)
Record kinds
Identifier schemes
Demand-side DRIVER lane (DeploymentRecord only): device units x per-device teardown Nd/Pr = the consumer-electronics magnet-REE lanes on ICT_CONSUMER_ELECTRONICS. Deliberately small (~0.11 + ~0.17 kt Nd/yr vs ~4 kt room-AC); corrects overstatement rather than adding tonnage.
