"has committed to support" is a correct and usable phrase in written English.
It is used to indicate an agreement or promise to provide assistance. For example: The organization has committed to support those in need by providing food and shelter.
The international community has committed to support them through UNRWA.
Through its inspiring enterprise programme, RBS has committed to support 100,000 young people, 20,000 women and 2,500 social enterprises by 2015.
Tackling homelessness is what first got me into politics, and I am proud to be part of a government that, despite tight public finances, has committed to support the most vulnerable in this country.
Through certain trust arrangements, Mr. John Malone controls in excess of 35% of the voting power of Liberty Global, and he has committed to support the transaction in his capacity as a shareholder.
The international community has committed to support Afghan security forces beyond 2014.
The European Union has committed to support Kenya's nutrition sector in their fight against malnutrition.
The private sector has committed to supporting the government in the application of this policy and the government has allocated a $350m budget to make that happen.
While the Labour leader, Jeremy Corbyn, has committed to supporting a vote for the UK to remain in the EU, he has strongly criticised TTIP, saying it risks "signing away" public services.
He insisted that the nomination would require 60 votes for approval when Republicans hold just a 52-seat majority and not a single Democratic senator has committed to supporting him.
The Chinese government (not unlike the governments of other countries) seeks to reduce dependence on foreign platforms and has committed to supporting local coders.
The company has committed to supporting both products while building bridges between them.
