Hi! At the moment, there is no way to gift ingots to other players. There are events available where you can give your friends and Group members coupons such as red pockets in "Anniversary Red Envelope".

We do not recommend recharging for other players as the only way would involve actions not supported or recommended by Naruto Online. Remember, everyone's account is their responsibility, we do not support or condone the sharing of accounts and the owner of the account will be responsible for any consequences due to the sharing of account, you can find an official post about it here.