Actually that is not necessarily your best option. Whilst UKTI have some nice products, you should talk to a private sector business who specialize in your market and in entering foreign markets. Why? They tend to be better connected and have better knowledge, they will share the risk and they are there for the long haul, and this is not a socialist state as yet.
There are a whole host of private sector organisations out there of all sizes who can assist you. No they are not free, but then you get what you pay for.
UKTI have a long list of approved and accredited organisations in the private sector that can assist, they are buried deep on their website under B2B and known as UKANs. There are plans at the top to stop hiding this resource and make the best kept secret more visible. Otherwise you can seek specialists through the usual searches, e.g. your local Chamber should have in their directory, your local library too.
In addition, there are many foreign government agencies and joint government agencies that can offer support, depending on which countries you are looking at, such as UKIBC for India, there are 2 or 3 for Hong Kong, and the EC offers a lot of local support in most countries. Their service are truly free (no charge and not out of our taxes), but again you get what you pay for.
Hope it helps.