I had no joy with the gov't website at all. I hired a broker and asked my questions and let them figure it out. What they told me was a small number and was encouraging.
I have just received 20 Yangze 550 watt panels, and the whole transaction went well. In North America it seems that the 100 to 320 watts are common, and I have not found a higher wattage panel available here at any price.
Bear in mind, I ordered at the worst possible time of year for China exports, December 22. The BOL said they were loaded on the Maliakos V on March 11. I waited the 22 days necessary, and watched the ship online, and my order never came. I was about to call my broker and my buyer agent when I received a Pre-Arrival notice from Binex, the dock and wharehouse. Turns out the panels were transferred to a ship S.M Busan, and left port on March 19. The Panels were loaded onto the dock today, April 9. My tax and import duties are $404, payable by Paypal At this moment my broker has notified me that my shipment has been released from customs and is available. Were it not for the Wuhan flu, I would drive down and pick them up and see my Grandchildren, But I am paying $319 truck freight to get them home.
I consider this a nice smooth transaction, YMMV.
I have a friend who is now bringing them in by container load cause he sees the hole in the market too. If you want Mamoud's # pm me.