PARIS — Satellite fleet operator APT Satellite Holdings Ltd. reported flat revenue and profit for the first six months of 2017, with a dip in its fleet’s fill rate and continued downward pressure on bandwidth prices.

The company said it concluded a second tranche of investment in APT Mobile Satcom Ltd., a Chinese-owned company planning a fleet of three or four mobile Ku-/Ka-band mobile communications satellites in geostationary orbit.

Hong Kong-based APT Satellite Holdings has a 30% stake in APT Mobile. Investment as of June . . .

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