U can see its price still strong today, for long term every 5 big china banks also no problem , now a day is the term of 1398 to rises its price, after that is 3988, so I think U should buy 1398 and 3988 now, they are ready to rise their price.
工商銀行 is a big banking in china. Their record is good so far and it's second ranking in china follow by China Bank.
It's good to buy for long term investment.