The Chinese government has put a Canadian semiconductor consultancy, which is known for its reverse-engineering analysis of chips to track their source, on a trade blacklist in a sign of a widening tech war with the West. Ottawa-based TechInsights was added to the “unreliable entity list” published by China’s Ministry of Commerce and banned from doing business with the country. Chinese individuals and organisations have been told not to “transmit data or provide sensitive information” to the...