On February 5, 2016, Nasdaq Stockholm AB decided that the shares in Petrotarg
AB (previously Ginger Oil AB) (the “Company”) were to receive observation
status due to material adverse uncertainty in respect of the Company’s
financial position with reference to a press release published by the Company
on the same day.

On May 25, 2016, the Company published a press release with information
regarding that the Company’s board of directors proposed the annual general
meeting to approve an acquisition of the assets of U.S. Energy Group AB, a
company listed on AktieTorget (name changed to MedClair International AB). The
board of directors also proposed that the Company should apply for delisting
from First North and apply for listing on AktieTorget.

On June 30, 2016, the Company published a bulletin from the annual general
meeting on June 29, 2016 with information regarding that the general meeting
had approved the acquisition proposal and had given the board of directors a
mandate to act for a delisting from First North and a listing on AktieTorget.

On October 19, 2016, the Company published a press release with information
regarding that two of the Company’s board members had resigned from the board
of directors with reference to that the same board members had chosen to leave
their appointments in the board of directors of MedClair International AB,
where they acted on the same ownership mandate as in the Company. According to
the same press release, the remaining board of directors would therefore
propose the next general meeting to decide that the Company was to remain
listed on First North.

With reference to the above, Nasdaq Stockholm AB has decided that the Company
shall undergo a new listing process on First North, comparable to that
conducted for an entirely new company applying for listing. Furthermore, the
current rules of First North state that a listed company can be given
observation status if the company has been subject of a reverse takeover or
otherwise plans to make or has been subject to an extensive change in its
business or organization so that the company upon an overall assessment appears
to be an entirely new company.

With reference to what is stated above, Nasdaq Stockholm AB has decided that
the shares in Petrotarg AB (PETR, ISIN code SE0005095643, order book ID 97083)
and the preference shares in the Company (PETR PREF, ISIN code SE0005034725,
order book ID 97084) shall be given observation status also with reference to
the above circumstance.

For further information about this exchange notice please contact Karin Ydén or
Niklas Ramstedt, telephone + 46 8 405 60 00.