"paramount capital" is correct and usable in written English.
It is usually used to refer to the most important funding source for a company or organization, as in the following example sentence: "The paramount capital for the new project came from a private investor."
However, for drop-in replacements, price is of paramount importance and competitive capital and operating expenditures are a prerequisite for success.
As the United States struggles to compete in a world economy where the cultivation, development and retention of human capital is paramount, we must ask ourselves: can we expect to keep pace with the rest of the world if we continue to lose a quarter of our students from our schools each year?
For Mr. Deysher, capital preservation is paramount.
In Clarke's world, capital allocation is paramount.
The paramount chief of the national capital, Kumasi, was the chief of the confederation.
The fund favors real estate operating companies because capital appreciation is paramount and they can use their cash flow to reinvest in properties and other businesses.
Sharing LTE network infrastructures and adopting network virtualization technologies are of paramount importance to reduce both capital and operational costs of future mobile networks.
Measures to make our single market work as well as serious investment in our shared European infrastructure and human capital is of paramount importance.
In the traditional Asante state, villages were grouped into territorial divisions; the chief of the capital village was the paramount chief of the division, and his village council served as the division council.
And when a nation can no longer compete on abundant labor or cheap capital, ideas and innovation are paramount.
