| 21. | Production of steam coal for railroad use by the Mountain Park Coal Co . Ltd . began in 1912 or 1914.
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| 22. | The Mond gas became popularized during the steam coal, resulting in cheaper electricity at about 1 / 20th of the normal price.
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| 23. | The principal coal seam was the Coleford High Delf, a steam coal much in demand and said to be up to thick.
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| 24. | It discharged 29, 334 tonnes of steam coal which was imported from China and meant for use by the local cement industry.
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| 25. | The mining line of business for Mechel comprises production and sale of coking and steam coal and iron ore.
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| 26. | He then established the Powell Duffryn Steam Coal Co ( PDSC ) which grew to be the largest coal company in South Wales.
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| 27. | In 1867 the company acquired the Aberaman Estate from iron master Crawshay Bailey, the land of which held much good quality'steam coal '.
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| 28. | These features limit the boiler's ability to burn hard bituminous coal and they require a supply of Welsh steam coal, or similar, instead.
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| 29. | He was a key director in the Powell Duffryn Steam Coal Co, the Rhymney Iron Company and the Taff Merthyr Steam Coal Company.
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| 30. | He was a key director in the Powell Duffryn Steam Coal Co, the Rhymney Iron Company and the Taff Merthyr Steam Coal Company.
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