The biggest problem, and cause of SEH's poor share price, is...

The biggest problem, and cause of SEH's poor share price, is negative market sentiment in the gas sector, not SEH not reaching milestones in a timely manner. Surprisingly, SEH's share price performance is not actually much different to around 15 gas shares' charts I looked at recently even with their poor performance in regard to achieving milestones such as producing and selling the gas, collecting money for it + getting governmental approvals.
With a likely drop in gate price of gas by around 10-15% likely it may have a small negative impact on SEH share price, however, it may also reduce some of the uncertainity the market has with SEH atm.
Until SEH can get approvals through as well as collect cash, the share will get sold off on news, such as what occurred yesterday. Also, I'm not convinced it will have a big rise on good news either due to negative sentiment in the sector. I think the holders are just going to have to wait it out for 1-2 years until that changes.
Good luck to holders.