Add category description on product page (Woocommerce)

This will display the categories.

<?php
    $args = array('taxonomy' => 'product_cat');
    $terms = get_terms('product_cat', $args);
    $count = count($terms); 

    if ($count > 0) {
        foreach ($terms as $term) {
            echo '<p>' . $term->description . '</p>';
        }
    }
?>

Where you put it depends on your theme. In your theme or child theme you need to create these folders woocommerce > single-product > meta.php.

You will most likely need to edit the above code for your needs but it should give you an idea.