| Investor Name | Invest Money | Lead Investor | Propotion | |
|---|---|---|---|---|
| Al Wahada Capital Investment | - | Yes | - | Detail |
| Mercedes-Benz Group AG | - | - | - | Detail |
| Announced Date | Round | Money Raised | Investors | |
|---|---|---|---|---|
| Jun 23, 2009 | Debt Financing | $ 465M | US Department of Energy | Detail |
| May 19, 2009 | Series E | $ 50M | Mercedes-Benz Group AG | Detail |
| Feb 8, 2008 | Series E | $ 40M | Mercedes-Benz Group AG | Detail |