Uploading products to a new Amazon store requires the following steps:

1. Create a new Amazon store: First, you need to log in to your Amazon seller account and select "Add a new store" to create a new store.

2. Select product categories: After the new store is created, you need to select the category that suits your product. Amazon has a detailed list of product categories, and you need to select the category that best matches.

3. Create a new product: After selecting the correct product category, click "Add a new product" to create a new product listing.

4. Fill in product information: On the page for creating a new product, you need to fill in the detailed information of the product, including product name, description, price, inventory, etc.

5. Add product pictures: Amazon requires that the product has at least one main picture, and you need to upload at least one high-quality product picture.

6. Set product variations: If your product has different color, size or style variations, you can add corresponding variation options in this step.

7. Fill in product keywords: In order to help buyers find your products more easily, you need to fill in keywords related to your products in the keyword field.

8. Configure shipping settings: Select the shipping method and cost of your product. You can choose to use Amazon's delivery service or arrange the shipping yourself.

9. Set sales policies: Set the product's sales policy according to your needs, including returns, refunds, and warranties.

10. Submit product information: After filling in all the necessary information, you can click "Submit" to upload the product information to Amazon.

Please note that the above steps may vary depending on the specific configuration and functions of the new Amazon store. It is recommended to read Amazon's user guide and help documents in detail before uploading products to ensure that you upload products according to the correct process.