CTR is a China market research firm, jointly owned by TNS and CCTV-subsidiary CITVC. They have released a report on advertising expenditure in 2004 in China, including Hong Kong and Taiwan. The report includes breakdowns by advertiser industry, territory, and media.
The total ad spend for the three territories are:
Mainland: USD 23.3 billion (25% increase on 2003)
Hong Kong: USD 4.8 billion (25% increase on 2003)
Taiwan: USD 15 billion (27% increase on 2003)
Download a PDF of the report for free from this page.