Hi,
For your HikaMarket requests, it is easier (and better) to use the HikaMarket forum section.
I noted your feature request about the plugin "shipping price per product" and his integration with HikaMarket.
As you have already notice, the prices are stored in the table "shipping_price".
It means that you have to perform an SQL query in the product page in order to load the shipping prices (and why not, some shipping data in the same time), in order to be able to display them.
Something like :
$db = JFactory::getDBO();
$query = 'SELECT sp.*, s.* FROM #__hikashop_shipping_price AS sp INNER JOIN #__hikashop_shipping AS s ON sp.shipping_id = s.shipping_id WHERE sp.shipping_price_ref_id = '.(int)$this->element->product_id.' AND sp.shipping_price_ref_type = ' . $db->Quote('product').' ORDER BY s.shipping_id ASC, s.shipping_price_min_quantity ASC';
$db->setQuery($query);
$shipping_prices = $db->loadObjectList();
Regards,