The sentence "importance is increasing" is correct and usable in written English.
You can use it in a variety of contexts to indicate that something is gaining importance or value. For example, "The importance of proper nutrition is increasing as more research is done on the subject."
This research discusses an evaluation method for regional economic policy, whose importance is increasing for the progress of decentralization of central government to local governments, by providing the analytical frameworks of intraregional and interregional SAMs.
Of primary importance is increasing insulin sensitivity and decreasing insulin resistance, resulting in improved metabolic responses when shuttling nutrients for glucose storage and usage.
Today, non-communicable diseases are a cause of the majority of ill-health in developing countries, and their importance is increasing rapidly.
The mean asset of the midline deviation was significantly higher in the scoliotic group, of which importance is increased by the lower mean value typical for the CTRL group, this value being even lower than of the MSCH group.
We also need to be smart as the importance of bibliometrics is increasing and part of the key to high impact is choosing the right venue for publication.
Recent years witnessed the growth of social contexts where the importance of friends is increasing.
The importance of Lifelong Learning is increasing in the international competitive environment.
The importance of Cloud Computing is increasing and it is receiving a growing attention in the scientific and industrial communities.
As the importance of DSSs is increasing, practical information about their successful machining is expected to be crucial.
With rotavirus vaccine introduction, the relative importance of norovirus is increasing [ 6, 7].
For different groups of patients, the importance of RTW is increasing both for personal and societal reasons [ 7].
