| 1 | Opening of the modern tobacco market | 1980s | China began developing a formal tobacco-monopoly and state-regulated distribution system during the 1980s. | Imported products entered a market that was increasingly organized around government licensing and controlled distribution. | Highly regulated |
| 2 | Creation of a national tobacco monopoly framework | 1991 | China adopted its national tobacco-monopoly law, establishing a legal basis for production, wholesale, retail, imports, and licensing controls. | Canadian cigarette imports became subject to a clearly defined statutory control system rather than ordinary unrestricted consumer-goods trading. | License required |
| 3 | Trade liberalization before WTO accession | 1990s | China progressively expanded foreign trade and modernized customs procedures while retaining strict controls over tobacco products. | This created more opportunities for imported cigarettes in duty-free, hospitality, diplomatic, and selected licensed channels. | Selective access |
| 4 | WTO accession and tariff commitments | 2001–2005 | China joined the World Trade Organization in 2001 and implemented related market-access and tariff commitments over the following years. | The commercial environment became more transparent, but tobacco remained subject to special monopoly, customs, tax, and licensing requirements. | More transparent, not open |
| 5 | Implementation of global tobacco-control obligations | 2003–2006 | China signed the WHO Framework Convention on Tobacco Control in 2003, ratified it in 2005, and became bound by it in 2006. | Imported cigarette marketing, health warnings, public-smoking rules, and promotional practices faced increasing compliance pressure. | Stricter compliance |
| 6 | Growth of premium imported-cigarette visibility | 2000s | Economic growth, international travel, premium retail, hotels, and entertainment venues increased consumer exposure to imported cigarette products. | Canadian-origin products could gain recognition through premium positioning and overseas-traveler channels rather than mass-market distribution. | Premium niche |
| 7 | Expansion of online commerce and cross-border supply | 2010s | E-commerce, social commerce, personal imports, and cross-border purchasing broadened access to overseas consumer products. | Canadian cigarettes could appear in informal listings, but online availability did not establish legal authorization or product authenticity. | Authenticity risk |
| 8 | Tobacco-tax adjustment and price restructuring | 2015 | China adjusted tobacco taxation in 2015, including changes affecting the wholesale and retail price structure. | Imported cigarettes became more sensitive to tax-inclusive pricing, channel margins, and differences between formal and informal supply. | Higher price sensitivity |
| 9 | National restrictions on online tobacco sales | 2019 | National authorities directed online platforms to stop selling electronic cigarettes and related products, reinforcing the principle of strict online tobacco oversight. | Digital promotion and sales of tobacco-related products, including imported products, faced substantially greater platform and regulatory scrutiny. | Online restrictions |
| 10 | Modern compliance environment | 2020s | Imported combustible cigarettes remain subject to tobacco-monopoly licensing, customs declaration, excise taxation, health-warning, packaging, and anti-counterfeiting requirements. | Legal market participation depends on authorized importation and distribution; unofficial listings cannot be treated as reliable market rankings. | Controlled legal access |