SINGAPORE, April 3 (Reuters) - Taiwan's Formosa

Petrochemical (FPCC) has stopped operations at its

port at the Mailiao refinery as a precautionary measure

following a powerful earthquake, two people with knowledge of

the matter said.

The company is expected to resume operations at the port on

Wednesday at around 3 p.m. (0700 GMT), one of the sources said.

There could be a delay of a day or two for some fuel

products discharging and loading from the port because of the

earlier tsunami warnings, one of the sources said, adding that

exact timings will have to be checked as some vessels are

scheduled to dock at the port on Thursday.

FPCC could not be immediately reached for comment.

At least one fuel product vessel - the Harrisburg - is

waiting to berth at Mailiao port, Kpler shiptracking data

showed.

The Harrisburg is scheduled to load jet fuel and 500ppm

sulphur gasoil in the next two days, the data showed.

Separately, two chemical tankers and one clean products

tankers are currently berthed at Mailiao port, the data added.

On the crude oil front, there is unlikely to be any impact

on arrivals since the refiner is scheduled to receive one

Saudi-origin cargo on April 8, sources said.

FPCC operates the 540,000 barrels per day refinery, which is

in Yunlin county in western Taiwan.

Four people died and more than 700 were injured after the

7.2 magnitude earthquake hit the island's remote east coast,

away from most of its power and oil infrastructure.

Meanwhile, state-owned refiner CPC Corp says it

still investigating the impact of the quake on its refinery and

port operations.

Some operational and safety checks are ongoing at CPC Corp's

Taoyuan refinery units given its proximity to the quake's

epicentre, but so far crude runs have not been affected

significantly, one source familiar with the matter said.

CPC Corp operates a 200,000-bpd refinery at Taoyuan in

northern Taiwan and a 450,000-bpd refinery at Talin, in

southwest Taiwan.

Refinery operations at the company's Talin site are

unaffected so far, a second source said.