About MyChina

Canada-China tariffs, quotas, permits and trade measures, with official sources, verification dates and economic news for importers, exporters and researchers.

We monitor official Canadian and Chinese publications and maintain a curated starting set of reviewed trade measures. A successful automated check is not legal re-verification. Each measure identifies its official instruments and verification date. Check those documents before making trade decisions.

News and industry headlines provide context. Machine-translated titles are labelled and preserve the original. This is an independent information service, not government advice.

How summaries and importance ratings are made

Official notices, including Chinese-language documents from the Ministry of Commerce, the Ministry of Finance and the General Administration of Customs, receive a short summary in English and Chinese and a rough importance rating from 1 to 5. A small open language model (Qwen3.5-2B, Apache-2.0 licence) runs on our own server for this. Public official document text is also checked by an AI reviewer through Codex or Claude Code running on our server. This review uses OpenAI or Anthropic; mailbox contents and subscriber data are not sent.

The model writes one sentence on what the issuing authority decided and lists key figures. Our code then checks that every number and quoted passage really appears in the source text and discards anything that does not. The model also classifies the document type. The rating is looked up from that type: 5 covers duties, restrictions and final injury findings; 4 investigations, rulings or bilateral arrangements; 3 procedure, timing or compliance steps; 2 context with no rule change; 1 not trade related.

A small model can still misread a complicated notice, for example which government acted. Treat every summary as a pointer to the official document, never as a substitute for it. Third-party news articles are not summarised.

Machine summaries stay hidden until checked against the official document. Accurate summaries are approved by the AI reviewer; unresolved factual issues go to the owner. AI review can still make mistakes. Errors are recorded in the public corrections log.

Cross-model audits

Published summaries then receive a second, independent check by a model from a different company: a summary first approved by OpenAI's model through Codex is audited by Anthropic's Claude, and the reverse. Different models tend to miss different things. A summary that passed shows Audited by and the auditing model's name. If the auditor finds an error, the first company's model must confirm the fix before it is published and logged; if the two disagree, the summary is hidden until a person resolves it. Any later change to a summary needs a new audit.

Intelligence cycle

Every four days the most capable models available to us study everything on the site and write an intelligence cycle: an insight that is not obvious from any single document, a Canadian company and a Chinese company it applies to, and a closing analysis. Each piece is written by one company's model and audited by the other's, and both are named on the page. These pieces are analysis, not advice, and the companies are not consulted.

Press signals

Alongside the cycle we publish press signals: two crawlers read the front pages of newspapers in every province of mainland China, Hong Kong, Macau and Taiwan, and measure patterns that no single paper shows, such as a subject rising against its own baseline, a phrase spreading from a county paper to the national press, a first mention of Canada, or a subject that has gone quiet. When a pattern is strong we read the articles behind it and write up what it means for Canada-China trade, with the same cross-model audit. Newspapers are cited by publisher, original headline, date and a link to their own page; we do not reproduce or summarise their articles.

Corrections and enquiries: hello@mychina.ca

Editorial standards

Sources. Measures, guides and the relations timeline cite official publications: the Canada Gazette, Global Affairs Canada, the Canada Border Services Agency, the Department of Finance, China's Ministry of Commerce, Ministry of Finance and General Administration of Customs, and similar bodies. News reports are used only to notice events, are labelled, and never support a legal statement.

What "verified" means. A person opened the official instruments and compared the record with them on the date shown. A successful automated check of a source is not verification. A record whose verification is older than 30 days says so.

Review before publication. Machine summaries are hidden until checked against the official document by an AI reviewer or editor. Unresolved factual issues need owner review. Draft measures, guides and legal pages are never public.

Corrections. Errors are fixed promptly and recorded, with dates, in the public corrections log. Entries are not removed.

Independence. Sponsors, listed firms and customers cannot influence measure records, ratings, summaries or the order in which anything is shown. Paid placements, when they exist, are labelled.