Recently, possibly due to the shortage, there’s been several unauthorized Kof-K’s on Nori Sheets. They do not certified any Nori produced in China.
The only Nori company certified by the Kof-K is Yamamotoyama.
From The KIB: Pesach News – Avocado Oil and Spray
All Pure Virgin Avocado Oil & Spray (without additives), are fine for use on Pesach without a special Pesach designation on the label.