Question: Who manufactured the powerPC 970 processor for Apple's Power Mac G5, which later known as PowerPC G5?

Context paragraphs:
POWER4: The POWER4 is a microprocessor developed by International Business Machines (IBM) that implemented the 64-bit PowerPC and PowerPC AS instruction set architectures. Released in 2001, the POWER4 succeeded the POWER3 and RS64 microprocessors, and was used in RS/6000 and AS/400 computers, ending a separate development of PowerPC microprocessors for the AS/400.  The POWER4 was a multicore microprocessor, with two cores on a single die, the first non-embedded microprocessor to do so.  POWER4 Chip was first commercially available multiprocessor chip.  The original POWER4 had a clock speed of 1.1 and 1.3 GHz, while an enhanced version, the POWER4+, reached a clock speed of 1.9 GHz.  The PowerPC 970 is a derivative of the POWER4.

Power Mac G5: The Power Mac G5 is a series of personal computers designed, manufactured, and sold by Apple Computer Inc. from 2003 to 2006 as part of the Power Mac series.  When introduced, it was the most powerful computer in Apple's Macintosh lineup, and was marketed by the company as the world's first 64-bit desktop computer.  It was also the first desktop computer from Apple to use an anodized aluminum alloy enclosure, and the only computer in Apple's lineup to utilize the PowerPC 970 CPU.

RHPPC: The RHPPC is a radiation hardened processor based on PowerPC 603e technology licensed from Motorola (now Freescale) and manufactured by Honeywell.  The RHPPC is equivalent to the commercial PowerPC 603e processor with the minor exceptions of the phase locked loop (PLL) and the processor version register (PVR).  The RHPPC processor is compatible with the PowerPC architecture (Book I-III), the PowerPC 603e programmers interface and is also supported by common PowerPC software tools and embedded operating systems, like VxWorks.

Power Macintosh 9500: The Power Macintosh 9500 (sold as Power Macintosh 9515 in Europe and Asia) is a personal computer designed, manufactured and sold by Apple Computer as part of the Power Macintosh line from May 1995 until February 1997.  It is powered by a PowerPC 604 processor, a second-generation PowerPC chip which was faster than the PowerPC 601 chip used in the Power Macintosh 8100.  The 180MP and 200 MHz models, introduced August 1996, use the enhanced PowerPC 604e processor.

System Management Unit: The System Management Unit (SMU) is an advanced internal subsystem introduced in late 2004 with the iMac G5 and Power Mac G5 series computers.  It manages the functions previously governed by the PMU (Power Management Unit) as well as additional cooling functions.

Power Mac G4: The Power Mac G4 is a series of personal computers designed, manufactured, and sold by Apple Computer, Inc. from 1999 to 2004 as part of the Power Macintosh line.  Built around the PowerPC G4 series of microprocessors, the Power Mac G4 was marketed by Apple as the first "personal supercomputers", reaching speeds of 4 to 20 gigaFLOPS.  This was the first existing Macintosh product to be officially shortened as "Mac", and is the last Mac able to boot into classic Mac OS.

Xserve: Xserve was a line of rack unit computers designed by Apple Inc. for use as servers.  When the Xserve was introduced in 2002, it was Apple's first designated server hardware design since the Apple Network Server in 1996.  In the meantime, ordinary Power Macintosh G3 and G4 models were rebranded as Macintosh Server G3 and Macintosh Server G4 with some alterations to the hardware, such as added Gigabit Ethernet cards, UltraWide SCSI cards, extra large and fast hard drives etc. and shipped with Mac OS X Server software.  The Xserve initially featured one or two PowerPC G4 processors, but was later switched over to the then new PowerPC G5, transitioned to Intel with the Core 2 based Xeon offerings and subsequently switched again to two quad-core Intel Nehalem microprocessors.

PowerPC 970: The PowerPC 970, PowerPC 970FX, PowerPC 970GX, and PowerPC 970MP, are 64-bit Power Architecture processors from IBM introduced in 2002.  When used in Apple Inc. machines, they were dubbed the PowerPC G5.

System X (computing): System X (pronounced ""System Ten"") was a supercomputer assembled by Virginia Tech's Advanced Research Computing facility in the summer of 2003.  Costing US$5.2 million, it was originally composed of 1,100 Apple Power Mac G5 computers with dual 2.0 GHz processors.  System X was decommissioned on May 21, 2012.

Motorola G5 project: The Motorola G5 project was an unsuccessful attempt around 2000-2001 to create a 64-bit PowerPC processor, as a successor to Motorola's PowerPC 7400 series.  On roadmaps from the era it was designated PowerPC 7500.

Supporting paragraphs: Power Mac G5 PowerPC 970
Answer: IBM