HSBC Hong Kong -> HSBC China is free of charge (for Premier)
HSBC China -> ICBC China (Shenzhen) only charge $1.2
All accounts can be opened at HSBC International Banking Division, wiver of annual fee for Premier Customer as well. I think HSBC's service is much better, you can call 2233 3322 to have them prepare all docments for you and only need to take 5 - 10 minutes for signing document and copying your ID card when you arrive HSBC.
Maybe after 1 week, HSBC China will send you the ATM card by DHL and all monthly statement will be mailed to your Hong Kong address.
For customer services, you can also call 2233 3322 and ask them to transfer to the HSBC China Service Hotline, and no need to pay IDD for calling HSBC China.
1. 係咪即係香港HSBC有Premier戶口, 免費開HSBC大陸戶口: Yes, for Premier a/c free of charge.
2. HSBC大陸戶口轉去ICBC大陸戶口收RMB1.2手續費: Yes again for Premier.
3. 然後可以用ICBC大陸戶口黎充值? You need to have "U Key". For 招商银行, "U Key" for general account is $50, Gold account is $25, 金葵花 account is free. I don't know the U Key price for ICBC.