Which one is correct?
"this will in turn promote" or "this will in turn promotes"?

Some examples from the web:

• This will in turn promote job creation and a robust modern economy and ensure that Europe leads the world in creativity and commerce into the 21st century.
• This will in turn promote the sharing of valuable experiences and the take up of good practices.
• This increases the level of innovation in the motor vehicle sector, which will in turn promote the competitiveness of Europe's economy.
• We also call for greater support for research and development and greater cooperation in these areas, which will in turn promote the development of new technologies.
• This will in turn enhance job creation.
• Action 7: Supports the development of ICT and e-Business skills definitions, which will in turn help promote mobility;
• This will in turn ensure that agricultural activity is sustained throughout EU territory.
• In the event of erroneous statistical data from Member States, this will in turn cause error in the output statistics of Eurostat.
• This will in turn enable us to ensure complete protection for the value of the right-holders' works.
• Travel to other countries as part of volunteering, in turn, promotes inter-cultural dialogue and teaches tolerance and respect.
• E. whereas adequate worker prevention in turn promotes wellbeing, quality of work and productivity; whereas the cost to enterprises and social security systems of occupational accidents and diseases is estimated at 5.9
• This will in turn enhance the overall resilience of the European financial system to shocks emanating from individual financial markets.
• At the same time, harmonisation of legislation will enable cross-border movements of machines within the EU on an equal basis, and this will in turn increase competitiveness in the European market.
• This will in turn impact on the rate of economic growth and job creation, thus making a valuable contribution to the success of the Lisbon Strategy.
• This will in turn serve to exacerbate the desertification of vast areas, as has already happened in Portugal, and to place the wine and alcohol sector into the hands of a few major producers and large companies.
• As the Subcommittee on Monetary Affairs' hearing demonstrated, that it why it is so important for us to explain that the advent of the euro will cut costs, and this will in turn result in savings for people travelling in the European Union.
• This, in turn, promotes the use of a transport mode which causes less environmental damage than road transport.
• This, in turn, promotes the use of a transport mode which causes less environmental damage than road transport.
• This will in turn mean higher raw material costs for bioenergy plants, whereas higher oil, coal and gas prices simply make solar energy more profitable.
• The negotiations between Mercosur and the European Union will undoubtedly help promote internal cohesion in Mercosur that will in turn help Argentina.

Some examples from the web:

• This will in turn promote job creation and a robust modern economy and ensure that Europe leads the world in creativity and commerce into the 21st century.
• This will in turn promote the sharing of valuable experiences and the take up of good practices.
• This increases the level of innovation in the motor vehicle sector, which will in turn promote the competitiveness of Europe's economy.
• We also call for greater support for research and development and greater cooperation in these areas, which will in turn promote the development of new technologies.
• This will in turn enhance job creation.
• Action 7: Supports the development of ICT and e-Business skills definitions, which will in turn help promote mobility;
• This will in turn ensure that agricultural activity is sustained throughout EU territory.
• In the event of erroneous statistical data from Member States, this will in turn cause error in the output statistics of Eurostat.
• This will in turn enable us to ensure complete protection for the value of the right-holders' works.
• Travel to other countries as part of volunteering, in turn, promotes inter-cultural dialogue and teaches tolerance and respect.
• E. whereas adequate worker prevention in turn promotes wellbeing, quality of work and productivity; whereas the cost to enterprises and social security systems of occupational accidents and diseases is estimated at 5.9
• This will in turn enhance the overall resilience of the European financial system to shocks emanating from individual financial markets.
• At the same time, harmonisation of legislation will enable cross-border movements of machines within the EU on an equal basis, and this will in turn increase competitiveness in the European market.
• This will in turn impact on the rate of economic growth and job creation, thus making a valuable contribution to the success of the Lisbon Strategy.
• This will in turn serve to exacerbate the desertification of vast areas, as has already happened in Portugal, and to place the wine and alcohol sector into the hands of a few major producers and large companies.
• As the Subcommittee on Monetary Affairs' hearing demonstrated, that it why it is so important for us to explain that the advent of the euro will cut costs, and this will in turn result in savings for people travelling in the European Union.
• This, in turn, promotes the use of a transport mode which causes less environmental damage than road transport.
• This, in turn, promotes the use of a transport mode which causes less environmental damage than road transport.
• This will in turn mean higher raw material costs for bioenergy plants, whereas higher oil, coal and gas prices simply make solar energy more profitable.
• The negotiations between Mercosur and the European Union will undoubtedly help promote internal cohesion in Mercosur that will in turn help Argentina.