First thing to do is check if you have an old Bitcoin address which was funded with atleast 0.01 BTC at the time of Bitcoin Block 480,000 ? If your answer is yes then go ahead and read. Further.
Bitcoin Block 480,000 was on found on Date : 10th August 2017 ( LINK TO CHECK BITCOIN 480,000 BLOCK DETAILS )

Now copy your Bitcoin address , and paste that here in this link :- https://www.semux.org/btc/ and click Lookup button. If your Address was found then you are lucky you can get :-
If your balance was more then 1 BTC , you will get 1000 SEM.
If your balance was less then 1 BTC , you will get 20 SEM.

Those who are illegible for SEM coin will get this text message after Lookup :-

BTC Address: 1MXMD8BgCL5kVuqDoWgikD19eMGRzMjSu2
Blanace: 0.10707759 BTC
Airdrop: 20.0 SEM

If you are illegible for SEM Coin. Then time for action.
Download SEM Wallet from this Link :- https://www.semux.org/#start ( Right now Wallet is available for both 32 Bit and 64 Bit Window Users )
Download it and install it. And Generate SEM Address.
Wallet after Installation will look like this.

Generate one address and copy it.

It is just a reminder to take backup of your address, Take secretkeys safe for future use.

Now go to your Bitcoin Wallet , Which one you are using. If you are using Bitcoin QT then open it and run this command in Debug :- Help > Debug Window > Console
signmessage “your_bitcoin_address” “your_semux_address”
Press enter and signature in your bitcoin address will become set.

OR IF YOU ARE ON BLOCKCHAIN WALLET

First Login to blockchain.info Wallet
Then click on Settings > Addresses and see in right hand panel. Your address. Then follow the image below :-

Once you ” Sign ” button , One window will open with the Signature as shown in image below. Copy It.

After putting signature in your Bitcoin address.
Visit this link to apply for Semux coin Airdrop.
LINK FOR SEMUX AIRDROP : https://goo.gl/forms/tXh3Gd8Z6LddBw6H2;