According to The Book of Hayle by Cyril Noall 1985 ISBN 38009003980296:

On 16 July 1743 Charles Wesley, when riding on horseback from Redruth to St Ives, crossed the River Hayle just before the sea came in.  Two tinners wished him luck, in the name of the Lord, but his next greeting was from 't he devil's children', who shouted as he passed and pursued him 'like the men, out of the tombs'.A few weeks later (7 August) he preached at 'Velling-Varine' - probably Vellan Vrane, in Angarrack - being so well received there that he rode on, rejoicing, to Gwennap.  His brother John first visited the district on 4 September 1765. 'About noon I preached at the Hayle, a small arm of the sea, which runs up into the land, two or three miles from St Ives, and makes a tolerable harbout', on 27 August 1785 he preached at the copper-works in the new preaching-house. 'I suppose such another is not in England, nor in Europe, nor in the world.  It is round, and the walls are brass; that is, brazen slags.  It seems nothing can destroy this, till heaven and earth pass away'. He preached again in this curious building, which stood in Fore Street opposite the premises of John Daniel & Son, on 9 September 1789.  It was replaced bty the much larger Copperhouse Chapel in 1816.  Methodism made great progress at Hayle during the 19th century, and further chapels were erected at Foundry (1845), Angarrack (1834 - the present building dates from 1873), Ventonleague (1875), Wheal Alfred and High Lanes (Bible Christian).

 

  and

We do not know how soon after Charles Wesley's first visit in 1743 a Society was established in Angarrack but it is on record that there was one in 1779 as part of the Redruth Circuit.  The old Chapel was built in 1834 before being outgrown and replaced by Angarrack Chapel .

[thanks to The Village of Angarrack Cornwall A pictorial view past and present by Dawn Guiver]

In 1814 Mr John Glasson of Copperhouse was baptised in the river at Cold Harbour near Angarrack by Rev G. C. 'Boatswain' Smith, widely known as the soldier's and sailor's friend, and so became the first Baptist in Hayle.