How to require a react component from a file containing multiple components?

I have the following

 var comp1 = React.createClass({
        render: function() {
            return (
            <div>
            <div class="content">
            <p> information here ..</p>
            </div>
            </div>
            );
        }
    });

    var comp2 = React.createClass({
        render: function() {
            return (
            <div>
            <div className="content">
            <p>information here</p>
            </div>
            </div>
            )
        }
    });

How do I require comp1 in another test file

I added module.exports at the end of the file and required as

var myComponents = require('../js/components/App.js').comp1

But get the following error

  - TypeError: Cannot read property 'exports' of undefined