The computer company registered a $16 million net loss for the year, largely because it was profitable only overseas, where much of their profits were used for paying higher taxes, while continuing to lose money in North America.

(A) where much of their profits were used for paying higher taxes, while continuing
(B) where much of their profits went to pay higher taxes, as they continued
(C) where much of its profit went to pay higher taxes, while it continued
(D) with much of their profits going to pay higher taxes, while continuing
(E) with much of the profit used for paying higher taxes, as it continued

What are the main problems with D and E?

D=> Their can not refer to the company.
D=> While continuing is awkward.

Is the use of "with much..." is the option D and E are wrong?

Thanks.