Back to Jeremy Corbyn now, who has outlined Labour’s plans to create a national education service, and a new "climate apprenticeship programme".

Labour's plan would see 320,000 apprentices trained in jobs such as construction, manufacturing and design within renewable energy, transport, sustainable agriculture and forestry, all during its first term in office.

Mr Corbyn also discusses Labour’s plans for the apprenticeship levy, saying Labour wanted to give employers more choice over how they spent the funds.

He finishes his speech by saying Labour’s vision is to build a country where “business thrives, alongside the people and the environment”.

Norman Smith
Assistant political editor

We’ve got the first clear U-turn of the election, with the Conservative leader announcing that the Tories are going to drop their pledge made in November to cut corporation tax.

That, Mr Johnson said, is not really affordable at the moment.

The PM said his party had not given up on tax cuts, but in the current climate it was not fiscally appropriate.

He also hinted at significant childcare policy pledges in the Tory manifesto.

A couple of weeks ago the CBI, before whom Jeremy Corbyn currently stands, came up with a figure for how much it thought Labour's nationalisation plans would cost.

The figure was problematic - as our Reality Check piece explains - but numbers notwithstanding, it's clear the business lobby group has concerns about the ambitions.

Labour is proposing a programme of nationalisation that would bring into public ownership the Royal Mail, rail-operating companies, energy supply networks and water and sewerage companies.

In recent days it has also added part-nationalisation of broadband services to that list promising free full-fibre coverage for all by 2030.

As Laura Kuenssberg just pointed out, Jeremy Corbyn says Labour’s Brexit plan is the one that would actually “get it sorted quickly”.

He says Labour’s plan will immediately end the uncertainty for businesses as it “won’t be ripping up our main trading relationship”.

“The Tories' Brexit failure has wasted three years,” he says. “Labour has a clear plan to get Brexit sorted within six months.”

The Conservatives, remember, have promised the UK can leave the EU on 31 January and get a trade deal in place with the remaining 27 nations before the transition period is up at the end of 2020.

Laura Kuenssberg
BBC political editor

The Labour leader is trying to argue that his Brexit plan is actually the one that would "get it done" - even if it is the PM who is using that slogan.

How? Labour claims they could get another deal with EU and hold a referendum in six months because they think Brussels would rapidly agree a softer Brexit deal with them - whereas with the Tories we would leave quickly but then have years of trade talks.

Jeremy Corbyn starts his speech by addressing claims he and his party are "anti-business", saying it is not anti-business to ask large corporations to pay their taxes like smaller companies do.

He tells the business leaders gathered before him: “If a Labour government is elected, you are going to see more investment than you’ve ever dreamt of.

"You’re going to have the best educated workforce you could ever have hoped for.“

He says businesses have “so much to gain from a Labour government”, including full-fibre broadband and reliable transport links.

Labour will ask people at the top to pay "their fair share in tax" and put an end to their "tax tricks" which they use to avoid paying their way.

Mr Corbyn also defends Labour's nationalisation plan, saying it is "the norm in many European countries".

Next to be welcomed on to the stage by CBI boss Dame Carolyn Fairbairn is Labour leader Jeremy Corbyn.

He starts by saying it has been helpful to have regular meetings with the CBI, and jokes that Boris Johnson was his "warm-up act".

Our correspondent Nick Eardley is with Lib Dem leader Jo Swinson this morning - she's visiting a tech company in St Albans ahead of her appearance at the CBI later.

Things seem to be getting somewhat festive by the looks of things...

Laura Kuenssberg
BBC political editor

Corporation tax has already been cut significantly and is pretty low by international standards.

But the Tories might hope this blunts some of Labour's attack on them for giving tax cuts to business and the better off over recent years.

Image source, Getty Images

Mr Johnson is now taking questions following his speech.

Following his announcement that the Tories are planning to postpone further cuts in corporation tax, he tells the CBI conference: "I hope you understand that it is the fiscally responsible thing to do.

"It doesn’t mean that we are in anyway we are averse to reducing taxes on businesses."

The rate paid by firms on their profits was due to fall from 19% to 17%. Labour had opposed the tax cut and said the rate should rise to 26%, where it was in 2011.

Does cutting corporation tax always raise more money? Read our Reality Check piece for the answer to that question.

BBC Radio 5 Live

Jeremy Corbyn is up next before the CBI and is likely to be questioned about his plans on immigration and free movement in the future.

Lord Blunkett, former Labour Home Secretary under Tony Blair, tells Emma Barnett his party has to be "very careful" not to "face two ways" on the issue.

He goes on to say the motion to passed at the Labour Party conference this year, to maintain and extend freedom of movement with the EU, "was crazy" and Labour needed to have a more controlled immigration policy.

He also criticises Conservative proposals on immigration, though, saying: "We need to ensure we can recruit from abroad for those areas of our economy where we simply cannot get people either with the right skills or the willingness to take the jobs".

For more on where the parties stand on immigration - and other matters - check out our comprehensive policy guide.

A significant moment now, as the speech edges towards a conclusion.

Boris Johnson announces the Tories are postponing further cuts in corporation tax. It had been due to fall from 19% to 17% next year.

He says: "Let me remind you that this saves £6bn that we can put into the priorities of the British people including the NHS and we have already cut it from 28% to 19%."

He says it would still be the lowest of any major economy and that the alternative Jeremy Corbyn - who would "whack it straight back up to the highest levels in Europe".

The PM adds: "We proudly back businesses across this country because they are creating the wealth that actually pays for the NHS and it is because the NHS is the nation’s priority, and because we believe emphatically in fiscal prudence."

Read our story for more.

The Electoral Commission has warned that younger people are at risk of missing the chance to make their voice heard in the general election.

One in three young are not registered to vote, according to the the independent body which oversees elections in the UK.

Only 74% of those aged 25-34 are correctly registered, falling to 68% among those aged 20-24 and 66% among those aged 18-19.

This is compared with those aged 65 and over, of whom 94% are already registered to vote.

Craig Westwood, director of communication, policy and research at the commission, said in a press release:, external

Norman Smith
Assistant political editor

Boris Johnson seems to be trying to reach out to traditional Labour voters by pledging to tackle health and wealth inequality outside of London and the south of England.

It's an interesting pitch by the PM.

Boris Johnson continues his speech to business leaders by highlighting his party's election appeal, saying a working Conservative majority would “unleash the potential of the country”.

He says every Conservative candidate standing in the general election backs his Brexit deal.

He moves on to criticising the Brexit plans of Jeremy Corbyn, who will be addressing the conference shortly.

He says an alliance between Labour and the SNP would consign the country “to months, if not years, of dither, delay, discord and division”.

The Tory party wants to “spread equality of opportunity” and “close the gap between rich and poor".

Tom Symonds
Home Affairs Correspondent

Image source, Getty Images/Reuters

Over to the High Court, where judges are considering two seperate legal challenges from the Lib Dems and SNP over their exclusion from ITV's general election debate...

Beginning the hearing, the Lib Dems tell the court "Brexit is the dominant issue" but the ITV debate will be "between two people who believe in leaving the EU".

"The voice of Remain will be excluded," the party adds.

Lord Justice Davis suggests that if the Lib Dems win, the ITV debate would not go ahead.

He’s told "this is a national news broadcaster… it can move very, very fast. It's not uncommon for a TV company to make adjustments at the last minute."

Laura Kuenssberg
BBC political editor

Boris Johnson is repeating "we have to get Brexit done" - in a room full of people who don't really think it will be "done" at all even if we leave in January.

He is also still making case for why he felt he had to call the election at all - this is the "dynorod" election... needed to clear the "blockage" of Parliament.

So far it feels like same stump speech we've already heard a fair few times.

Boris Johnson's speech begins with a list of economic achievements he says were made under the Tories in government, including the growth of the economy over the last nine years.

Listing Britain's successes - including "exporting music by Jason Donovan to North Korea" - he sings the praises of business leaders like those gathered in the room at the CBI's conference.

However, he says that is only half the story and the country is being held back by politics because Parliament has failed to deliver Brexit.

He repeats his mantra that “we must get Brexit done”, which he says is one of the advantages of voting for a Conservative government. He talks about the harm the current uncertainty is causing the UK.

CBI boss Dame Carolyn Fairbairn welcomes onto the stage Boris Johnson, who is the first of the three party leaders to give a speech at the conference today.

He says it's "an honour" to be speaking at the conference.

CBI boss Dame Carolyn Fairbairn opens the CBI conference in London saying it comes at "very unusual times", saying it’s the first that has ever been held during a general election.

“Here we are on the threshold of a brand new decade, with the chance for all of us to shape what comes next. It does make this, I believe, one of the most important elections in our lifetime."

She says "extreme ideology" on both sides of the political spectrum is a “danger that could get in the way of a bright future”.

She cites the preference for a no-deal Brexit on the right and “an obsession” with the wholescale deregulation of the UK economy.

She also says ideology on the left is “at least as damaging” – highlighting Labour’s programme of nationalisation.

She adds that Labour's plan to nationalise part of BT was “a bolt from the blue” and sent “a chill through boardrooms at home and abroad”.

"These ideologies from both sides are causing great harm to our economy, not just in the future but right now."