The phrase "and subsequently launch" is correct and usable in written English.
It can be used when describing a sequence of actions where one action follows another, particularly in contexts like project management or product development.
Example: "After completing the testing phase, we will refine the product and subsequently launch it to the market."
Alternatives: "and then initiate" or "and later deploy".
Ryanair initially bought its stake in Aer Lingus in 2006 and subsequently launched a bid for the entire company, which the EC blocked.
Chris Anderson was at that moment a publisher — he'd started out with tech-hobbyist magazines, in the nineteen-eighties, and subsequently launched Business 2.0, a product of and casualty of the boom years — who was looking to move beyond print journalism.
Founded by Felix Leuschner (CEO) and Matt Varughese (CTO) in late 2015 and subsequently launched the following January, Drover has built what it describes as a Mobility-as-a-Service platform, giving you access to a car wrapped up in a single monthly subscription.
Another big rival is Amazon, which has redoubled its efforts to grow its business in India, after committing $3 billion of investment into the country in 2016 and subsequently launching a host of services like its sticky Prime loyalty program.
The DNR claimed the airport on January 21, and subsequently launched an offensive on Ukrainian positions along the line of control that separates the two sides.
To mark the occasion, a special Boddingtons 5% ABV Commonwealth Ale cask ale was produced for the North West of England, and subsequently launched nationwide.
Following the collapse of Tsarist Russia in late 1917, the Germans were able to transfer large amounts of equipment and manpower from the Eastern Front to the Western Front and subsequently launched their Spring Offensive in March.
In early 1918, after the fighting on the Eastern Front ended following the collapse of Tsarist Russia, the Germans transferred a large number of divisions to the Western Front and subsequently launched a major offensive that became known as the Spring Offensive.
