"official launching" is correct and usable in written English.
It is often used to describe the formal introduction of a product, organization, or event. For example, "The team held an official launching ceremony to mark the opening of the new store."
An official launching date is expected to be announced late next week.
However, there are many security and privacy issues which must be taken into account before the official launching of this new technological concept.
With consummate guile, the Minnesota congresswoman and Tea Party leader used the televised forum as a prop for the official launching of her candidacy, electrifying the audience and the news media.
She was launched on 4 July 1905, Prince and Princess Arisugawa were on hand for the official launching ceremony.
You see, it's the official launching pad for Universal's "Dark Universe," a new movie franchise in the vein of the Marvel Cinematic Universe but based on famous monsters such as Creature from the Black Lagoon (2019) and The Hunchback of Notre Dame TBAA).
We defined as consolidation stage those hospitals with two or more years of enrollment after the official launching of the project [ 5] in 2005.
Elliott and another senior M.I.6 official launched an internal review of his case and declared Philby innocent.
However, trying to establish an "official" launch date is trickier than it sounds.
Shortly after that, Nepali officials launched a search.
City officials launched a renewal programme, but found their efforts marred by payday lenders.
Algerian officials launched a protest, claiming the match was fixed, but the allegations were never proved and the result stood.
