回複：感謝 interchang 的回複，不好意思，還有問題

HRSDC Comfirmation is similar to H1b LC process in US. HRSDC must confirm that there is no qualified Canadian or Canadian PR can fill the position you are offered. It should be done by your employer and will take 3-4 months. Some positions are exempt from this process. See the CIC link.