blue20ae

You can call customs and find out if they have any restrictions on these stuff.  My guess is 陳皮 should be okay.  But 豆豉 and 欖角 may be a problem as they may moist.

If in doubt, declare the items when you arrive.  The worst can happen is they take it away.  I found Customs are very reasonable.  Once I brought in duck product from France during the big scare on bird flu, they gave me a lecture, but let me keep the stuff.