Production difficulties at Astec in Malaysia delayed the machine's introduction, forcing Acorn to look to other manufacturers such as AB Electronics in Wales and Wongs in Hong Kong (an original equipment manufacturer making over 30 million circuit boards a year, along with power supplies and plastic housings, for companies such as IBM, Xerox, Atari, and Apple, including units made for Acorn for the BBC Micro). By October 1983, Acorn had received orders for more than 150,000 units, but had production targets of only 25,000 a month before Christmas, meaning that the existing backlog would take more than six months to fulfil. Demand for the Electron was high but only two of WH Smith's London branches had inventory. Ultimately, manufacturing in Malaysia ceased with the anticipated but unspecified number of units having been produced, this having been originally reported as 100,000 units. Acorn's marketing manager, Tom Hohenberg, admitted in early 1984 that "a lot of the trouble stemmed from the ULA" in getting production to the desired levels, but that such difficulties had been resolved, although Acorn faced an order backlog of almost a quarter of a million units.