PENG Coin is recently added to Graviex faucet and I did a quick research into the project by donating some free coins to the following charity project:
African Penguin & Seabird Sancurary https://charities.pengcoin.org/african-penguin-seabird-sancturary.php
The process is very simple:
Get PENG coins free from the Graviex faucet.
Select project to donate here: https://charities.pengcoin.org/
and copy PENG address to donate coins
Go to Graviex withdrawal and paste donation address as per image below. Enter amount to donate.
Optionally check transaction ID on a blockchain. Direct click on transaction ID in image below did not work as intended but I found the transaction by searching destination address here: https://www.coinexplorer.net/PENG/address/PErUkGzHLUxrHLEbYzvxCgzhcc7prRT4x4
Transaction fee was very minor = 0.002 PENG
Of course, you are free to sell the coins on Graviex exchange too.
Please feel free to use my link for Graviex. The details of referral program are here.
Some other posts about Graviex exchange:
https://read.cash/@Swca.ch/graviex-exchange-with-free-coins-to-start-7e230df3
From Publish0x, not my post but very useful: Graviex Is A Great Exchange Offering Passive Income And Other Surprises!
Thanks for information